Results 271 to 280 of about 150,938 (302)

Space-Time Adaptive Processing

2004
This chapter considers a radar with an antenna consisting of several subapertures, or antenna elements; the echoes received by each subaperture are processed using the adaptive matched filter. Such a radar is capable of a certain degree of suppression of jammers, as well as (for an airborne radar) more effective endoclutter MTI. A single-aperture radar
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Robust adaptive subspace detectors for space time processing

Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181), 2002
We consider the problem of detecting a subspace signal when there is uncertainty in the subspace. Such uncertainty usually causes a mismatch between the detector and the signal to be detected, which may lead to significant loss in performance. To improve the robustness of the detection procedure we apply robust adaptive subspace detectors based on ...
Ariela Zeira, Benjamin Friedlander
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Reduced rank space-time adaptive radar processing

1996 IEEE International Conference on Acoustics, Speech, and Signal Processing Conference Proceedings, 2002
This paper is concerned with the performance of reduced rank space-time adaptive processing (STAP) for radar signals. The motivation for rank reduction is that optimal full-rank STAP requires many more weights than can be supported on airborne and space-segment platforms.
J. Scott Goldstein, Peter A. Zulch, Irving S. Reed   +2 more
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Structured covariance estimation for space-time adaptive processing

1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2002
Adaptive algorithms require a good estimate of the interference covariance matrix. In situations with limited sample support such an estimate is not available unless there is structure to be exploited. In applications such as radar space-time adaptive processing (STAP) the underlying covariance matrix is structured (e.g., block Toeplitz), and it is ...
Timothy A. Barton, Steven Thomas Smith
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Server-class devices for Space Time Adaptive Processing

2018 IEEE High Performance extreme Computing Conference (HPEC), 2018
Space-Time Adaptive Processing (STAP) is known to efficiently reduce the effects of clutter and jamming. Computing the adaptive weights in real-time is an intensive process; computational burden can be reduced by selecting computations most suitable for the processing technology.
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Space-Time Adaptive Processing for Radar

2014
Abstract Space-time adaptive processing (STAP) is an important radar technology. It is a cornerstone in the design of modern moving target indication and imaging radar systems. Specifically, STAP is a multidimensional filtering technique that mitigates the influence of clutter or radio frequency interference on principal radar products, viz.
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Space-time adaptive processing and adaptive arrays: special collection of papers

IEEE Transactions on Aerospace and Electronic Systems, 2000
Space-time adaptive processing (STAP) and related adaptive array techniques hold tremendous potential for improving sensor performance by exploiting signal diversity. Such methods have important application in radar, sonar, and communication systems. Recent advances in digital signal processing technology now provide the computational means to field ...
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CQCNN-SV algorithm for wideband space–time adaptive processing

Multidimensional Systems and Signal Processing
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ruiyan Du, Xiaodan Chen, Guangyu Meng, Liwen Feng, Yajie Gao, Fulai Liu   +5 more
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Compressed Space-Time Adaptive Processing (CSTAP)

TENCON 2005 - 2005 IEEE Region 10 Conference, 2005
A wavelet transform technique is used to reduce (compress) the dimensionality of the covariance matrix as well as signal snapshots in space-time adaptive processing (STAP) to cut the computational demand. The algorithm is tested using both simulated airborne radar data generated by the high-fidelity airborne radar simulation software, RLSTAP, as well ...
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Adaptive space-time process in radar applications

Aerospace Science and Technology, 1997
Resume Un radar est un capteur spatio-temporel dont les performances dependent beaucoup des traitements appliques aux signaux qu'il delivre. Le but de cet article est, apres avoir rappele le principe de ces traitements, de livrer une reflexion sur les differentes possibilites offertes par le filtrage adaptatif en matiere de rejection des signaux qui ...
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