Title :
Adaptive beamforming for Doppler signal
Author :
Linrang, Zhang ; Guisheng, Liao ; Zheng, Bao
Author_Institution :
Nat. Lab. of Radar Signal Process., Xidian Univ., Xi´´an, China
Abstract :
A small number of samples and system errors can degrade the performance of adaptive arrays, particularly when the input signal-to-noise ratio (SNR) is large. A direct signal cancellation method to estimate the interference-noise covariance matrix which increases the SINR by using the desired signal Doppler information is proposed. It has the advantages of eliminating the problem of signal cancellation, a good beam pattern with the properties of low sidelobe level and fast convergence, which are confirmed by computer simulations
Keywords :
Doppler effect; antenna arrays; array signal processing; convergence of numerical methods; covariance matrices; interference suppression; linear antenna arrays; noise; parameter estimation; radar antennas; radar signal processing; Doppler signal; SNR; adaptive arrays; adaptive beamforming; computer simulations; fast convergence; input signal-to-noise ratio; interference-noise covariance matrix estimation; linear uniform array; low sidelobe level; radar array; radar system; signal cancellation method; system errors; Adaptive arrays; Array signal processing; Covariance matrix; Degradation; Doppler radar; Frequency; Interference cancellation; Radar antennas; Signal processing; Signal to noise ratio;
Conference_Titel :
Radar, 2001 CIE International Conference on, Proceedings
Conference_Location :
Beijing
Print_ISBN :
0-7803-7000-7
DOI :
10.1109/ICR.2001.984810
