Title :
The effects of covariance matrix mismatch on adaptive CFAR performance
Author_Institution :
Thales UK, Crawley, UK
Abstract :
This paper analyses the CFAR performance of the Normalised Adaptive Matched Filter (NAMF) when the estimate of the covariance matrix used to design the filter does not match the clutter in the cell under test. The analysis results are compared with simulations and the potential effects on practical detectors are investigated using a recently developed model for the non-stationary Doppler spectra of sea clutter.
Keywords :
Doppler radar; adaptive filters; covariance matrices; matched filters; NAMF; adaptive CFAR performance; cell under test; covariance matrix mismatch; nonstationary Doppler spectra; normalised adaptive matched filter; sea clutter; Adaptation models; Clutter; Covariance matrices; Detectors; Doppler effect; Matched filters; Noise; CFAR; Doppler spectra; NAMF; non-stationarity; sea clutter;
Conference_Titel :
Radar (Radar), 2013 International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
978-1-4673-5177-5
DOI :
10.1109/RADAR.2013.6652007
