Results 181 to 190 of about 28,176 (205)

An anti-clutter radar receiver

Journal of the Institution of Electrical Engineers - Part III: Radio and Communication Engineering, 1948
One of the major limitations to the efficacy of radar is the presence of responses from land, sea or rain-storms in the vicinity of a target, such responses being generally known as "clutter." If the clutter is of amplitude greater than the target-echo, detection of the echo is very difficult; in many cases, however, the clutter is of amplitude smaller
R.V. Alred, A. Reiss
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High resolution radar clutter statistics

IEEE Transactions on Aerospace and Electronic Systems, 1999
The generalized compound probability density function (GC-pdf) is presented for modeling high resolution radar clutter. In particular, the model is used to describe deviation of the speckle component from the Rayleigh to Weibull or other pdfs with longer tails.
null Anastassopoulos, G.A. Lampropoulos, A. Drosopoulos, N. Rey   +3 more
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SEEK IGLOO Radar Clutter Study

1977
Abstract : This report presents the procedures and results of a clutter measurement program conducted in Alaska during the summer of 1976. Both amplitude and spectral density functions were modeled from the data taken from land, sea, weather, and other forms of clutter.
James P. Ryan, Vincent C. Vannicola, William L. Simkins   +2 more
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Clutter emulator for radar testing

1998 IEEE AUTOTESTCON Proceedings. IEEE Systems Readiness Technology Conference. Test Technology for the 21st Century (Cat. No.98CH36179), 2002
With the advent of a new airborne radar signal processing technology entitled, "Space-Time Adaptive Processing (STAP)," previous testing methods have proven inadequate. STAP algorithms minimize the amount of interference competing with the desired signal.
R. Lefevre, E. Wilen, R. Satterfield, V. Wright, R. DiDomizio   +4 more
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Radar Detection in Weibull Clutter

IEEE Transactions on Aerospace and Electronic Systems, 1976
Radar detection in Weibull clutter is examined from a statistical detection viewpoint. Weibull clutter parameters are determined and related to measured values of land and sea clutter. Optimum performance in Weibull clutter is determined, and practical receivers that approach this performance are identified. Receiver performance in Rayleigh, log-normal,
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Clutter suppression in search radars

1977 IEEE Conference on Decision and Control including the 16th Symposium on Adaptive Processes and A Special Symposium on Fuzzy Set Theory and Applications, 1977
A comparison of MTI and Optimum Pulse-Doppler processors is presented for the case where they coherently process the same number of pulses in a radar dwell. These results are presented in terms of probability of detection versus signal-to-noise or signal-to-clutter ratio, for a fixed false alarm probability.
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Bayesian Inversion of Radar Clutter

2003
Abstract Estimation of refractivity profiles from radar clutter return is discussed. Through simulation andexperimental results it is shown that the radar clutter return can be used for extracting refractivityprofiles. Of particular interest is the uncertainty in these estimates and it is demonstrated how theseparameters can be used for radar ...
William A. Kuperman, William S. Hodgkiss, Peter Gerstoft   +2 more
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Representation of radar sea clutter

IEE Proceedings F Communications, Radar and Signal Processing, 1988
Sea clutter data obtained with a land-based X-band radar are analysed in terms of a correlated gamma-distributed noise model. Results obtained with both vertical-vertical and horizontal–horizontal transmit-receive polarisations are shown to be broadly compatible with the model.
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Radar Clutter Modeling and Analysis

2014
Abstract Radars operating in an open environment will receive returns from many sources. In addition to reflections from objects of interest, usually known as targets, the radar signal will include backscatter from the environment and other unwanted objects, known as radar clutter. A radar system is required to process the returns from targets in the
GRECO, MARIA, Watts S.
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Radar Clutter Classification

1989
Doctor of Philosophy (PhD)
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