TY - GEN
T1 - ADBF at subarray level using a generalized sidelobe canceller
AU - Hu, Hang
AU - Liu, Enxiao
AU - Xiao, Yong
PY - 2009
Y1 - 2009
N2 - ADBF is one of crucial techniques for phased array radar, which generally contains thousands of element. It usually adopts subarray configuration and can get only digital outputs of subarrays. Direct subarray weighting(DSW) configuration based on linearly constrained minimum-variance(LCMV) is an effective solution for ADBF, while the performance degrades in the presence of array imperfections such as amplitude and phase errors. Generalized sidelobe canceller(GSLC) is insensitive to those errors and can implement a wide variety of linearly constrained adaptive array processors with simple hardware differencing amplifiers. This paper studies an implementation method at subarray level for GSLC and compares the performance of GSLC to that of DSW in the cases of errors and no errors. Simulation results demonstrate that the proposed method is effective even when DSW lose beam shape in the presence of array imperfections.
AB - ADBF is one of crucial techniques for phased array radar, which generally contains thousands of element. It usually adopts subarray configuration and can get only digital outputs of subarrays. Direct subarray weighting(DSW) configuration based on linearly constrained minimum-variance(LCMV) is an effective solution for ADBF, while the performance degrades in the presence of array imperfections such as amplitude and phase errors. Generalized sidelobe canceller(GSLC) is insensitive to those errors and can implement a wide variety of linearly constrained adaptive array processors with simple hardware differencing amplifiers. This paper studies an implementation method at subarray level for GSLC and compares the performance of GSLC to that of DSW in the cases of errors and no errors. Simulation results demonstrate that the proposed method is effective even when DSW lose beam shape in the presence of array imperfections.
KW - Adaptive digital beamforming
KW - Generalized sidelobe canceller
KW - Linearly constrained minimum-variance
KW - Subarray level processing
UR - https://www.scopus.com/pages/publications/77950125589
U2 - 10.1109/MAPE.2009.5355964
DO - 10.1109/MAPE.2009.5355964
M3 - 会议稿件
AN - SCOPUS:77950125589
SN - 9781424440740
T3 - Proceedings - 2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, MAPE 2009
SP - 697
EP - 700
BT - Proceedings - 2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, MAPE 2009
T2 - 2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, MAPE 2009
Y2 - 27 October 2009 through 29 October 2009
ER -