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

fYear

2001

fDate

2001

Firstpage

688

Lastpage

692

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar, 2001 CIE International Conference on, Proceedings

Conference_Location

Beijing

Print_ISBN

0-7803-7000-7

Type

conf

DOI

10.1109/ICR.2001.984810

Filename

984810