Title
Performance comparison between statistical-based and direct data domain STAPs
Abstract
In the situation that a radar platform is moving very fast, the number of training data used in space-time adaptive processing (STAP) is a major concern. Less number of training data is preferred in this situation. In this paper, four versions of statistical-based and direct data domain STAPs are discussed and compared their performance when the number of training data is varied. The four statistical-based methods are the full-rank statistical method, the relative importance of the eigenbeam (RIE) method, the principle component generalized sidelobe canceller (GSC) method, and the cross-spectral GSC method. We will compare the performance of these four methods with that of the direct data domain least squares (D3LS) approach, which utilizes only one snapshot of data in its processing. The channel mismatch will be also introduced to all methods to evaluate their performance. It is found that to make the statistical-based methods work; we need to know the rank of the interference covariance matrix. And the D3LS performs better when the number of training data available for the statistical-based methods is less than the rank of the interference covariance matrix.
Year
DOI
Venue
2007
10.1016/j.dsp.2006.10.002
Digital Signal Processing
Keywords
Field
DocType
training data,frequency,testing,interference,signal to noise ratio,radar,space time adaptive processing,computer science,statistics,least square,covariance matrix,space time
Least squares,Data domain,Computer science,Interference (wave propagation),Artificial intelligence,Space-time adaptive processing,Radar,Pattern recognition,Communication channel,Algorithm,Speech recognition,Covariance matrix,Principal component analysis
Journal
Volume
Issue
ISSN
17
4
Digital Signal Processing
Citations 
PageRank 
References 
2
0.40
0
Authors
2
Name
Order
Citations
PageRank
Burintramart, S.120.40
Sarkar, T.K.2471117.33