Title :
Extension of Adaptive Angle-Doppler Compensation (AADC) in STAP to increase homogeneity of data in airborne bistatic radar
Author :
Fallah, A. ; Bakhshi, Hamidreza
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Tabriz, Tabriz, Iran
Abstract :
In This study, Adaptive Angle Doppler Compensation (AADC) for Space-Time Adaptive Processing (STAP) in airborne bistatic radar is extended to increase signal to interference plus noise ratio (SINR) in processor output. In this method, compensation in spatial and Doppler frequencies is repeated in several stages to guarantee homogeneity of secondary data in estimation of covariance matrix. In new approach, subspaces of covariance matrix of clutter for all range gates are brought close together. For comparing the performance of new method with previous ones, clutter is simulated for a special scenario in Matlab. Simulation shows that in proposed approach, the enhancement is 2-3dB more than AADC.
Keywords :
Doppler radar; airborne radar; compensation; covariance matrices; electromagnetic interference; radar clutter; radar signal processing; space-time adaptive processing; AADC; Doppler frequencies; Matlab; SINR; STAP; adaptive angle-Doppler compensation; airborne bistatic radar; clutter covariance matrix; covariance matrix estimation; processor output; secondary data homogeneity; signal to interference plus noise ratio; space-time adaptive processing; spatial compensation; Arrays; Clutter; Covariance matrices; Doppler effect; Receivers; Transmitters; Vectors; Adaptive Angle Doppler Compensation (AADC); Clutter; Space Time Adaptive Processing (STAP); covariance matrix; subspace;
Conference_Titel :
Telecommunications (IST), 2012 Sixth International Symposium on
Conference_Location :
Tehran
Print_ISBN :
978-1-4673-2072-6
DOI :
10.1109/ISTEL.2012.6483014
