TY - GEN
T1 - Joint design of transmit and receive beamforming for interference mitigation
AU - Liu, Jun
AU - Li, Hongbin
AU - Himed, Braham
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/3/12
Y1 - 2014/3/12
N2 - 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.
AB - 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.
KW - Active Array
KW - optimization
KW - receive beamforming
KW - receive filter
KW - transmit beamforming
UR - http://www.scopus.com/inward/record.url?scp=84946689525&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84946689525&partnerID=8YFLogxK
U2 - 10.1109/RADAR.2014.7060337
DO - 10.1109/RADAR.2014.7060337
M3 - Conference contribution
AN - SCOPUS:84946689525
T3 - 2014 International Radar Conference, Radar 2014
BT - 2014 International Radar Conference, Radar 2014
T2 - 2014 International Radar Conference, Radar 2014
Y2 - 13 October 2014 through 17 October 2014
ER -