Results 161 to 170 of about 4,896 (201)

Range dependent clutter rejection using range recursive space-time adaptive processing (STAP)

Signal Processing, 2010
This paper adresses the issue of ground clutter rejection for the detection of slowly moving targets in a non side looking (NSL) array configuration airborne radar. The optimum Space Time Adaptive Processing (STAP) filter needs the knowledge of the inverse of the space-time covariance matrix. In practice, it is unknown and has to be estimated. The most
Beau, Sophie, Marcos, Sylvie
openaire   +3 more sources

Robust space–time adaptive processing (STAP) in non-Gaussian clutter environments

IEE Proceedings - Radar, Sonar and Navigation, 1999
The problem of space-time adaptive processing (STAP) in non-Gaussian clutter is addressed. First, it is shown that actual ground clutter returns are heavy-tailed and their statistics can be accurately characterised by means of alpha-stable distributions.
P. Tsakalides, C. L. Nikias
openaire   +1 more source

Canonical framework for describing suboptimum radar space-time adaptive processing (STAP) techniques

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509), 2004
We address the problem of detecting slow moving targets from a moving radar system using space-time adaptive processing (STAP) techniques. Optimum interference rejection is known to require the estimation and the subsequent inversion of an interference-plus-noise covariance matrix. To reduce the number of training samples involved in the estimation and
S. De Greve, F.D. Lapierre, J.G. Verly
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Space-Time Adaptive Processing (STAP) for Low Sample Support Applications

2004
Abstract : Airborne radar Space-Time Adaptive Processing (STAP) in a heterogeneous, target-rich environment is addressed. An efficient Kalman Filter implementation of the normalized form of the Parametric Adaptive Matched Filter (NPAMF) is introduced and shown to perform well against a detailed simulation of a site-specific, dense-target environment ...
Ping Li, Harvey K. Schuman
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Space-time adaptive processing (STAP) for wide-band airborne radar

Record of the IEEE 2000 International Radar Conference [Cat. No. 00CH37037], 2002
STAP is a technique used to reject clutter returns in airborne phased array radar systems. This paper presents an investigation of the performance of STAP in wideband scenarios. It is shown that, under these circumstances, narrowband STAP is often sufficient for clutter rejection with sideways looking arrays, but that a wideband STAP architecture is ...
openaire   +1 more source

On the benefits of space-time adaptive processing (STAP) in bistatic airborne radar

RADAR 2002, 2003
This paper has examined the clutter angle-Doppler inter-relationships for bistatic airborne radar. It has been shown that there are significant differences between the monostatic and bistatic clutter rejection problems. In particular, it has been shown that bistatic airborne radar clutter exhibits the following characteristics: 1.
G.M. Herbert, P.G. Richardson
openaire   +1 more source

Range-recursive space-time adaptive processing (STAP) with a circular airborne radar antenna

2008 IEEE Radar Conference, 2008
In this paper, space-time adaptive processing (STAP) for clutter rejection in airborne radar is considered using a uniform circular antenna array. Indeed, this technique is usually employed in case of a uniform linear antenna array while the advantages of a circular antenna were recently highlighted [2]. Our contribution is two fold.
Sophie Beau, Sylvie Marcos
openaire   +1 more source

A pragmatic approach to adaptive antennas and space-time adaptive processing (STAP)

2000 5th International Symposium on Antennas, Propagation, and EM Theory. ISAPE 2000 (IEEE Cat. No.00EX417), 2000
Summary form only given. In the conventional adaptive beamforming methodology typically weights are connected to each one of the antenna element in the array and the processing information is generated over time, as the correlation matrix of the data needs to be formed.
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Computation reduction in space time adaptive processing (STAP) of radar signals using orthogonal wavelet decompositions

Conference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154), 2002
The STAP of radar signets involves solving a set of linear equations /spl Lambda/w=s. Here /spl Lambda/ is the correlation matrix of noise plus interference signals, w is the weight vector and s is the steering vector. The Weiner solution to estimate the optimum weight vector w/sub 0/ for a given s that minimizes the effect of the interference signal ...
S. Kadambe, Y. Owechko
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A comparison study between Wiener and adaptive state estimation (STAP-ASE) algorithms for space time adaptive radar processing

SPIE Proceedings, 2010
Space Time Adaptive Processing (STAP) is a multi-dimensional adaptive signal processing technique, which processes the signal in spatial and Doppler domains for which a target detection hypothesis is to be formed. It is a sample based technique and based on the assumption of adequate number of Independent and Identically Distributed (i.i.d ...
Obaidul Malek, Anastasios Venetsanopoulos, Alagan Anpalagan   +2 more
openaire   +1 more source