radar signal IEEE PAPER
Stepped-frequency pulse-train radar signal
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Abstract: The stepped-frequency radar signal is revisited. The delay-Doppler response of pulse-trains with different interpulse frequency codings is investigated, including linear, nonlinear, up-down and Costas codings. Different approaches to sidelobe reduction are
Signal processing techniques for landmine detection using impulse ground penetrating radar
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Abstract:Landmines are affecting the lives and livelihoods of millions of people around the world. A number of detection techniques, developed for use with impulse ground penetrating radar, are described, with emphasis on a Kalman filter based approach. Comparison of
Synthetic aperture radar signal processing
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The work reported in this book was supported by the following government agencies and private industries:. Their generous support of this
Location of archaeological structures using GPR method: three-dimensional data acquisition and radar signal processing
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Generally, in order to detect shallow archaeological features, such as tombs, cavities, walls, etc., ground penetrating radar (GPR) data are acquired along parallel profiles, ln some cases, the data collected using the GPR method are difficult to interpret owing to the
Effect of concrete moisture on radar signal amplitude
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The moisture content of concrete is a critical parameter for most of the physicochemical pathologies, such as steel reinforcement corrosion, alkali-aggregate reaction, and freezing- and-thawing cycles. Therefore, the detection of moisture is important for the diagnosis of
Processing a radar signal and representations of the discrete Heisenberg group
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We call the functions {gm} the Gabor functions for scales 0 and . The following problem arises in the theory of the reliability of interpreting a radar signal, as well as in a number of other contexts. Do the Gabor functions for scales 0 and [3 span a dense subspace of L2 (R
Signature simulation and signal analysis for 3-D laser radar
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Report title (In translation) Signature simulation and signal analysis for 3-D laser radar Abstract (not more than 200 words) From ordinary laser data you can easily target in every single laser shot.
Algorithm of signal processing in ultra-wideband radar designed for remote measuring parameters of patient's cardiac activity
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Abstract In this article, the algorithm of processing the data received from the medical ultra- wideband (UWB) radar is described. The algorithm provides a possible of comparing the results of heart activity monitoring performed by the UWB radar with indications from the
Signal processing and pattern recognition methods for radar AP mine detection and identification
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Abstract. We discuss the processing of radar data, based on pattern recognition, with the emphasis on the extraction of features, and various ways of combining classification results.
The design of hardware and signal processing for a stepped frequency continuous wave ground penetrating radar
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Abstract A Ground Penetrating Radar (GPR) sensor is required to provide information that will allow the user to detect,target. This is an extremely tough requirement, especially when one considers the limited amount of information provided by
A variational method for attenuation correction of radar signal
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Abstract. Most operational radars in Europe, Canada and Asia are C-band radars. Therefore, they are significantly affected by wet radome and precipitation attenuation, which makes quantitative use of radars difficult. Most of the proposed attenuation correction
5.5 RADAR OPERATIONS CENTER (ROC) EVALUATION OF THE WSR-88D OPENRADAR DATA ACQUISITION (ORDA) SYSTEM SIGNAL PROCESSING
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The WSR-88D Radar Operations Center (ROC) is evaluating the new signal processor, digital receiver, and software algorithms under development by the National Weather Service (NWS) Office of Science and Technology (OST), Open Radar Data Acquisition (
Phase shift and decorrelation of radar signal related to soil moisture changes
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ABSTRACT An experimental study of the phase shift induced by moisture changes was performed by means of indoor radar measurements on rough soil samples whose moisture profiles were artificially modified. A simple analytical model (summation of independent
Validation of a new signal processing scheme for the MST radar at Aberystwyth
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Abstract. This paper describes a new signal processing scheme for the 46.5 MHz Doppler Beam Swinging windprofiling radar at Aberystwyth, in the UK. Although the techniques used are similar to those already described in literature–ie the identification of multiple signal
Data modeling and simulation applied to radar signal recognition
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2. RADAR SIGNAL PROCESSING One of the most difficult tasks in the radar signal processing is an optimal features extraction and classification. The multifunction radar systems can not be classified and precisely recognized by most of new and modern ESM
Physical analysis of atmospheric delay signal observed in stacked radarinterferometric data
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Abstract:The main limiting factors for deformation mea-surements using repeat-pass satellite radar interferometry are temporal decorrelation of the scattering characteristics of the earth and atmospheric delay phase contributions to the interferometric phase. Ferretti
targets and disturbances and related radar signal processors'
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ABSTRACT The first part of the paper provides flexible and reliable stochastic models for the target and clutter sources. The models allow" to consider any shape of autocorrelation function between consecutive pulse echoes and any probability
Poly-alphabetic pulse compression radar signal design
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Abstract It is getting increasingly clear that the improvement in the performance of pulse compression radar system would require heavy dependence on the signal processing at the receiver. Here, a scheme is proposed in which the binary pulse compression waveform is Target detection using high resolution UWB signals, and provides detection nearly equivalent to traditional correlator for high false alarm rates. It is a small step from optimal detection to adjusting the filter for special
Application of compressed sensing theory to radar signal processing
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Abstract:Compressed sensing theory is a newly developed theory which unites the signal sampling and compression, based on the sparsity characteristic of signal. The union can reduce sampling rate, and then reduce computational complexity of the system without the
Ground-penetrating radar signal modeling to assess concrete structures
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To better understand reflected ground-penetrating radar (GPR) signals from sound concrete and delaminated concrete structures, five bare concrete slabs and nine slabs with simulated delaminations were constructed. Five concrete mixtures were used; all slabs were cast at
Signal subspace reconstruction method of MIMO radar
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A novel signal subspace reconstruction method for multiple-input multiple-output (MIMO) radar is proposed. The developed method realises signal subspace resconstruction by the eigendecomposition of two low dimension matrixes. It provides lower computational
Signal processing steps for objects imaging through the wall with UWB radar
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Abstract:UWB radar system facilitates us to estimate positions and shapes of the objects behind the wall. It has a great utilization especially for rescue and security applications. This paper briefly describes all signal processing steps that are required for Imaging of the
GPR signal processing with geography adaptive scanning using vector radarfor antipersonal landmine detection
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Abstract: Ground Penetrating Radar (GPR) is a promising sensor for landmine detection, however there are two major problems to overcome. One is the rough ground surface. The other problem is the distance between the antennas of GPR. It remains irremovable
Robust coherent laser radar design and signal processing for vibrometry
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1 Abstract A C02-ladar system is used for measurements. The signal from the system is a sinusoidal FM-modulated multi-component signal. To extract the modulating frequencies time frequency representations, eg, the Wigner-Ville distribution (WVD) and the Choi-
5.4 NEXRAD OPEN RADAR DATA ACQUISITION (ORDA) SIGNAL PROCESSINGSIGNAL PATH
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1. ABSTRACT The Open Radar Data Acquisition (ORDA) subsystem replaces the current WSR-88D Radar Data Acquisition subsystem with improved receiver and signal processing hardware and with improved user interface, signal processing and diagnostics software.
Advanced intermittent clutter filtering for radar wind profiler: Signal separation through a Gabor frame expansion and its statistics
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Abstract. A new signal processing method is presented for the suppression of intermittent clutter echoes in radar wind profilers. This clutter type is a significant problem during the seasonal bird migration and often results in large discrepancies between profiler wind
Signal processing of radar echoes using wavelets and Hilbert Huang transform
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Abstract Atmospheric Radar Signal Processing is one field of Signal Processing where there is a lot of scope for development of new and efficient tools for spectrum cleaning, detection and estimation of desired parameters. The wavelet transform and HHT (Hilbert-Huang
Multiobjective Optimization New formulation and application to radar signalprocessing
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he was always willing to
Comparison of Modeled and Measured Doppler-Polarimetric Parameters ofRadar Signal Reflected from Rain
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This paper describes results of joint research between the International Research Centre for Telecommunications-transmission and Radar (IRCTR) at the Delft University of Technology (The Netherlands) and the Kiev International University of Civil Aviation (Ukraine). A set of
Fractional convolution and correlation: Simulation examples and an application toradar signal detection
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ABSTRACT In this paper, we study the recently introduced fractional convolution and fractional cross-correlation operations. These fractional operations are related with the fractional Fourier transform (FrFT). Whereas the conventional linear time-invariant (LTI)
Earth Curvature and Atmospheric Refraction Effects on Radar SignalPropagation
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Abstract The earth isn't flat, and radar beams don't travel straight. This becomes more noticeable as range increases, particularly at shallow depression/grazing angles. This report
Signal design for ultra-wideband radar and wireless communications
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Abstract:-The emerging ultra-wideband technology is in demand of extensive theoretical as well as experimental research to advance the implementation and commercial use of its numerous applications. Impulse-type signals are characterized by an ultra-wide frequency
Adaptive methods to implement the optimum radar signal processor'
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1. ABSTRACT In this paper two adaptive algorithms to impleent the optimum radar signal processor are presented and their performance are evaluated. The first method considered derives from the application of the Gram-Schmidt ortho normalization algorithm to the input Fig. i. Geometry of the problem. The vector x 0 gives the direction of propagation of the probing impulse; Ax, Ay, dimensions of the rectangular resolution area; ro (xo, Yo), radius vector of its center; Ro, distance of the radar system from the point (xo, Yo); 40, glancing
Improving ground penetrating radar signal analysis through FFT superimposition
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This paper deals with the signal analysis problem encountered with Ground Penetrating Radar (GPR) applications that use the Fast Fourier Transform (FFT). A technique for improved signal analysis based on superimposing multiple FFT analyses from the same
targets with complex motions
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In this chapter, ISAR images generated from measured data are compared to those from computertarget identification. Three sets of images are generated including:(i) motion compensated
Contributions to Robust Adaptive Signal Processing with Application to Space-Time Adaptive Radar
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Classical adaptive signal processors typically utilize assumptions in their derivation. The presence of adequate Gaussian and independent and identically distributed (iid) input data are central among such assumptions. However, classical processors have a tendency to
NOAA Advanced Signal Processing System for Radar Wind Profilers
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The National Oceanic and Atmospheric Administration's Environmental Technology Laboratory (NOAA/ETL) has developed an advanced Signal Processing System (SPS) that can be integrated with existing radar wind profilers (RWP). The main purpose behind this
The separation of noise and signal components in Doppler RADAR returns
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Knowing the correct noise value in a Doppler radar return is essential for (a) computing moments with good data quality (Ivic and Torres 2010),(b) optionally censoring (ie setting to missing) data which contains noise only and (c) contributing to a data quality metric (
Modification of a weighting function for NLFM radar signal designing
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It is well known that the synthesis of radar signals, influences much to the radar detection targets. Concerning the matched filter in receiver only, it maximizes the peak signal to mean noise power ratio,targets detection. The
BETWEEN AN INTERVAL OF CORRELATION OF ECHO-SIGNAL ENVELOPE AND TURBULENE INTENSITY IN RADAR REFLECTING VOLUME OF CLOUD
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ABSTRACT The width of Autocorrelation Function (ACF) is characterized by the interval of correlation at the 0.5 level, x0. 5. The eddy dissipation rate (s) is a fundamental parameter that describes the intensity of turbulence. We use the data of simulation and build a model
Real time signal compression in radar using FPGA
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1. Abstract This paper discusses the performance of different windows functions when they are applied in a radar system during pulse compression. The paper proposes too the implementation of a radar processing procedures in real time mode on FPGA architecture.
On the optimum decision rule for the radar signal processing
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The optimum decision rule for processing of the primary search pulse radar information is derived and its statistical characteristics are determined in the present paper. In contrary to [1] the present derivation is based on the real assumption, that the starting value of radar
Advanced Signal Processing Techniques for Multi-Damage Detection With an Improved Embedded Ultrasonic Structural Radar Algorithm and Piezoelectric Wafer
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Abstract The embedded ultrasonic structural radar (EUSR) algorithm was developed by using piezoelectric wafer active sensor (PWAS) array to detect defects within a large area of a thin-plate specimen. EUSR was verified to be effective for detecting a single crack either
Reducedrank intelligent signal processing with application to radar,"
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The technologies associated with radar signal processing have developed and advanced at a tremendous rate over the past sixty years. This evolution is driven by the desire to detect targets in increasingly challenging noise environments. Two fundamental
Incoherent scatter radar-spectral signal model and ionospheric applications
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Doppler radars find a widespread use in the estimation of the velocity of discrete hard- targets as described elsewhere in this volume.targets collections of vast numbers of weakly scattering elements filling the radar beam the emphasis typically
Intercept receiver signal processing techniques to detect low probability of intercept radar signals
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Many users of radar today are specifying a Low Probability of Intercept (LPI) as an important tactical requirement. The term LPI is that property of a radar that because of its low power, wide bandwidth, frequency variability, or other design attributes, makes it difficult to be
LFM radar signal detection in the joint time-frequency domain
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ABSTRACT The paper presents a detection performance of the LFM radar signal using the Radon transform. Such a transform extracts the line equation from the time-frequency image. The main problem which is considered in the paper is the autonomous search process of
Radar signal feature extraction system based on a saw dispersive delay lines
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The distinctive features of modern radarsignal are hidden in its time-frequency structure. In the near past the problem of
FPGA signal processing for radar/sonar applications
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FPGAs have been used in radar and sonar systems for some time mostly in support functions. However, as FPGAs get more sophisticated, performing and integrating more DSP functions in FPGAs is becoming the standard. As a result, radar-and sonar-system
UWB Radar Signal Processing for Positioning of Persons Changing Their Motion Activity
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Abstract: In many applications of ultra-wideband (UWB)target motion is a priori notargets. Usually a signal processing aimed at the positioning of only moving persons or only static persons leads to The solution for J (p) is an asymptotic expansion in small parameter e=(ka cos30)-i I, where a= min (al, a2), up to and including a=. The expression for the second approximation (7) contains j (L)(p)~ in which one need retain only terms% e. It is seen from the solution of
Doppler-polarimetric radar signal processing.
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Target. Polarimetry is a methodology for the determination of the polarisation-dependent reection of a stationary target. Doppler-polarimetry is a methodology for the detennination of the
Leakage signal analysis for position-adaptive UAV radar applications
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ABSTRACT The results of numerical electromagnetic simulation and analysis of a set of positive-adaptive UAV radar signals are presented. These signals are simulated via the modeling of materials that enclose building-type structures with a series of connected
Radar: signal analysis during operation time using wavelets
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Abstract:-Over-the-horizon-Radars (OTHRs) operate in the High Frequency band (3 to 30 MHz);targets beyond the horizon and are employed in many applications such as scientific meteorological studies, surveillance and oceanic platform
The Numerical Synthesis of a Radar Signal Based on Iterative Method
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The signal to the interference ratio at the receiver input is a characteristic that has a particular impact on a radar system performance. This is due to the fact that the radar probability of detection of useful signals depends on this parameter. Therefore, one of the
Effects of snow properties on the dual frequency radar altimeter signal of Envisat over the antarctic ice-sheet
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ABSTRACT A unique advantage of the ENVISAT altimeter system is the acquisition in S band as well as the classical Ku band. This S band frequency is designed to measure the ionospheric delay over the ocean surfaces. Over land and ice, however, the returned
Generation Of Modulus Constraint Signal In Adaptive Radar Waveform
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Abstract:Waveform synthesis techniques based on maximization of signal-to-interference- noise ratio (SINR) or mutual information (MI) requires generation of transmit signal with a prescribtarget and
Radar signal detector implemented with artificial neural networks
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Abstract--Radar signal detection in conventional radar systems is based on statistical methods. These methods are computationally expensive and often only optimal for one type of clutter distribution. More recent approaches in radar signal detection consider also
Analysis Of Radar Performance In Ce-Ofdm Signal
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ABSTRACT: In this paper multi carrier radar signals have been introduced to achieve high range resolution in radar systems by controlling the large peak to mean envelope power ratio and large power fluctuations that is sensitive to non-linearities in the system due to
A review of sparse frequency linearly frequency modulated (SF-LFM) laserradar signal modeling with preliminary experimental results
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The ambiguity function, which is based on matched filter processing, allows us to look at both the temporal uncertainty in the signal as well as Doppler uncertainty and how they affect each other. In the limit thatis equal to zero (target) the ambiguity
Optimized radar signal processing for a low-cost, solid-state airborne radar
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Hazard sense and avoid (H-SAA) is an emerging new type of radar sensing mission mainly for unmanned aerial system (UAS) integration and aviation safety. This work studies the fundamental requirements and challenges of HSAA radars, and uses both simulation and
polarization radar calibration: Temperature dependence and stability with focus on antenna-mounted receivers and noise source-generated reference signal
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In 2011 MeteoSwiss started renewing and extending its operational C-band weather radar network. The three existing radars have been replaced by state-of-the-art polarimetric Doppler radars with antenna-mounted receivers (AMR); two additional systems at high
Group theory in radar and signal processing
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This paper describes some key mathematical ideas in the theory of radar from a group theoretic perspective. The intention is to elucidate how radar theory motivates interesting ideas in representation theory and, conversely, how representation theory affords a better
Rapid Prototyping of Radar Signal Processing
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Military sensors employ signal processors to take raw information gathered by the sensors to produce data that can be used byawareness. Signal- processing algorithms are typically mathematically intensive, and thus, are the most
MST Radar Signal Processing using Analytic Wavelet Transform
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Signal Processing where there is a lot of scope for development of new and efficient tools for spectrum cleaning, detection and estimation of desired parameters. Shift-invariance property and good directional selectivity are important for application of wavelet transform in fields
WLFM radar signal ambiquity function optimalization using genetic algorithm
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This paper deals with optimization of ambiguity function. The purpose of article is to describe optimization process using Genetic Algorithm for suppressing side-lobes of a signal. There
DBT, A Matlab and Octave toolbox for radar modelling, signal simulation and processing. Release 2.156.
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A Matlab/Octave and Octave toolbox called DBT for radar modelling, simulation and signal processing has been under development at Swedish Defence Research Agency (FOI) since 1994. In the beginning the focus of DBT was radar array processing. By radar array
targets
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Abstract:This paper presents results of measurements and simulations of the radio frequenctargets such as clouds and rain. The measurements were carried out by X-band weather radar and
RADAR Signal Extraction Using Correlation
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ABSTRACT In this paper we present post-integration processing in order to improve the sensitivity of electronic support measure (ESM) receivers. Correlation methods take advantage of the periodic character of radar signals. In such cases, autocorrelation and
Mars Ionosphere preliminary impact analysis on SHARAD radar signal
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SHARAD is the sub-surface sounding radar provided by the Italian Space Agency (ASI) as a facility instrument to NASA's 2005 Mars Reconnaissance Orbiter (MRO). SHARAD is a wideband low-frequency nadir-looking pulse limited radar sounder transmitting at a centre
Enhanced radar range resolution and beam steering through signal generation
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The applications for wideband waveforms in phased arrays radars, such as increased range target imaging, are rising. However, the wide bandwidths present problems for the signal processing equipment required in order to effectively utilize the high
EMC modelling of radar signal susceptibility of cardiac pacemakers
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Abstract Cardiac pacemakers are vital for many persons sufferering from heart diseases, and a malfunction of those devices can have severe consequences for their wearers. Yet, in a signal environment evermore complex, the influence of external signals interfering with
Extraction of landmine signature from ground penetrating radar signal
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Abstract:With its principle of detection based upon electro-magnetic (EM) wave propagation parameters inhomogeneities within the medium under consideration, ground penetrating radar (GPR) is poised to be a very valuable tool in the field of humanitarian
Improved Temperature Profiles for Atmospheric Radar Signal Using Dual-Tree Complex Wavelet Transform
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ABSTRACT Atmospheric temperature profiles play a very important role in the study of atmospheric stability and turbulence structures. The temperature profile for Troposphere and lower Stratosphere are derived from backscattered signal of Indian MST radar located at
Time-frequency analysis for radar signal processing
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ABSTRACT Time-frequency methods are powerful tools for radar signal processing. Many radar signal processing problems involve changing frequencies. Two examples are given in the present paper.target motion causes time-dependent
Fréchet Metric Space, Homogeneous Siegel DomainsRadar Matrix SignalProcessing
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Classification of bounded symmetric domains by E. Cartan with respect to Bergman metric (all homogeneous domains of dimension 2 and 3 are symmetric. What about n= 3) Homogeneous bounded domains have been proved to be symmetric if they admit
An Effective Signal Processing Procedure for the Detection of Road Damages using Ground Penetrating Radar
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Abstract:-Pavement damage is actually one of the most crucial problems in roads. Agencies need first to localize the damage, second to identify the causes. Indeed, the rehabilitation can be compromised, if the cause is not removed. The ground penetrating radar (GPR)
Detection and Cancellation of Jamming Signal Noise Using Digital Filters forRadar Applications
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Abstract–Thistarget signal target jammer source. Jamming is intentional emission of radio frequency signals to interfere with the operation of a radar by saturating
radar target detection
target signals in non-Gaussian clutter: theory and Applications
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ABSTRACT The present paper pursues, extends and concludes the theory and the presentation of results initiated with the papers/1/,/2/and/3/prepared by the same authors. The pur pose of the present paper is manifold. First, a brief revision is provided of the
target detection
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In the last two decades, a number of researchers have expended considerable effort target discrimination. Virtually all of these schemes target's transient scattered field. Most of
Design and implementationtarget detection
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Targets are usually buried in thermal noise and clutter.target detection is commonly performed by comparing radar returns to an adaptive threshold such that a constant false alarm rate (CFAR) is maintained. The threshold in a CFAR detector is
target in an interference saturated environment
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Abstract:An interference saturated environment is one of the operating conditions that drastically degrades the detection performance of the radar signal processor. Such an environment is frequently encountered in radar applications (target situation). In this
target detection in the presence of clutter
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Abstract: Clutter is the term used to describe unwanted returns (echoes or reflections) in the radar signal. These clutter signals are often as strong as or stronger than the signals target.target-detection/
Design and itarget detection using ML403 FPGA development board
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Abstract: The improvement in the development of theoretical aspect of CFAR radar detection is advanced and very promising, yet the practical hardware aspect is still beyond the required high computational signal processing operations. In this paper, a configurable
Regtarget detection
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This thesis will finalise a Master of Science degree in Electrical Engineering at the Institute of Technology, Lund University. The thesis was done at the Swedish Defence Research Agency (FOI), division of Sensor Technology. Supervisors at FOI have been Tomas
Target detection in continuous-wave noise radar in the presence ofimpulsive noise
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Target detection in radar is addressed. Radar (radio detection and ranging) is a device,targets [1, 2]. The most popular radars nowadays are pulsed radars, which transmit energy for a
Mtarget
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SUMMARY This paper deals with the problem of optimum detection of radar signals by means of a multistatic configuration of sensors. Starting from the case of multiple observations, a systematic analysis of the model leads to a unified optimum receiver for
target Detection in HF Skywave Radar using Thomson's Multiple-Window Method
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Thomson's Multiple-Window (MW)target detection in HF sky-wave radar. The MW method makes minimal assumptions about the noise environment, is specifically designed for short data segments and has high resolution. These properties
target Distance using a PN Radar System
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Radar is an object detection system that uses electromagnetic waves to identify the range, altitude, direction, or speed of both moving and fixed objects such as aircraft, ships, motor vehicles, weather formations, and terrain. A radar system has used a short pulse of radio ABSTRACTtarget in clutter characterized as spherically invariant random process (SIRP) and thermal noise. The probability density function of the SIRP clutter plus thermal noise is derived, and the
target Detection and Estimation Using 77 GHzRadar
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ABSTRACT In this paper the modeling/simulation of 77 GHz Radar having a bandwidth of 1.target distance and the velocity. This kind of Radar can be useful in the field of carto-car communication. They
Wavetarget Embedded Inside a Dispersive Multi-Layered Medium
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Target embedded inside a multi- layered dispersive material by using UWB excitation and filtering technique. First the electromagnetic field problem is considered. The stratified region excited by an UWB
target Detection in Radar Imagery using Support Vector Machines with Training Size Biasing. In Proceedings of the Sixth International
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ABSTRACT We considered the use of Support Vector Machines (SVMs) in the classification of synthetic aperture radar images. The images are divided into two types: those images with man-made vehicles,targets of interest, and those images without. This real
target Detection by Wavelet-based Denoising Methods
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Abstract: With progress in radar systems, a number of methods have been developed for signal processing and detection in radars. A number of modern radar signal processing methods use time-frequency transforms, especially the wavelet transform (WT) which is a
target Detection by the RADARSAT-1 Synthetic Aperture Radar
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Abstract This paper introduces the experimental results of ship detection by both RADARSAT SAR imagery and landbased RADAR data, operated by the local Authority of South Korea, so called vessel traffic system (VTS) radar. Two fine imagery of Ulsan Port
the Prediction of a Class of Wide-Sense Stationary Random Processes JM Medina and B.target Detection
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Abstract:In this paper, we propose a computationally simple and efficient subspace-based adaptive method for estimating directions-of-arrival (AMEND) for multiple coherent narrowband signals impinging on a uniform linear array (ULA), where the previously
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