DocumentCode :
3577684
Title :
Joint design of transmit and receive beamforming for interference mitigation
Author :
Jun Liu ; Hongbin Li ; Himed, Braham
Author_Institution :
Dept. of Electr. & Comput. Eng., Stevens Inst. of Technol., Hoboken, NJ, USA
fYear :
2014
Firstpage :
1
Lastpage :
5
Abstract :
Conventional phased-array radar forms a transmit beam pointed to a target of interest, whereas a multiple-input-multiple-output (MIMO) radar employs omni-directional transmission. In both systems, the transmission process takes place without accounting for any interference sources present in the radar scene; and interference mitigation is performed primarily through a receive beamformer. In this paper, we consider joint design of the transmit and receive beamforming in an active array by exploiting a-priori information on the locations of the target and interference. We propose a cyclic optimization algorithm to maximize the output signal-to-interference-plus-noise ratio (SINR) with respect to the transmit and, respectively, receive beamforming vector. Numerical results demonstrate that a significant gain in the output SINR can be achieved by the proposed scheme, compared to the conventional phased-array radar and the MIMO radar.
Keywords :
MIMO radar; array signal processing; interference suppression; optimisation; phased array radar; radar interference; radar receivers; radar signal processing; radar transmitters; MIMO radar; SINR; cyclic optimization algorithm; interference mitigation; multiple-input- multiple-output radar; omnidirectional transmission; phased-array radar; receive beamforming; signal-to-interference-plus-noise ratio; transmit beamforming; Arrays; Interference; Nickel; Optimization; Radar; Signal to noise ratio; Vectors; Active Array; optimization; receive beamforming; receive filter; transmit beamforming;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Radar Conference (Radar), 2014 International
Type :
conf
DOI :
10.1109/RADAR.2014.7060337
Filename :
7060337
Link To Document :
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