TY - GEN
T1 - ROBUST BEAMFORMING ALGORITHM BASED ON CONVEX OPTIMIZATION MULTIPLIER METHOD
AU - Wang, Zhen
AU - Gao, Sheng
AU - Yu, Zhichao
AU - Yang, Xiaopeng
N1 - Publisher Copyright:
© 2020 IET Conference Proceedings. All rights reserved.
PY - 2020
Y1 - 2020
N2 - The performance of adaptive beamforming will degrade dramatically in practical application due to angle estimation error in interference signal. Therefore, a robust adaptive beamforming method based on convex optimization multiplier is proposed in this paper. In the proposed method, the DOA information of the interfering signal is firstly calculated using MUSIC algorithm. Then the spatial smoothing algorithm is used to de-correlate. In the following, the cost function is constructed by the Lagrange multiplier method. Finally, a set of optimal weight vectors can be obtained through iteration. Simulation results show that the proposed method can effectively reduce the effect of angle estimation error in interference signal.
AB - The performance of adaptive beamforming will degrade dramatically in practical application due to angle estimation error in interference signal. Therefore, a robust adaptive beamforming method based on convex optimization multiplier is proposed in this paper. In the proposed method, the DOA information of the interfering signal is firstly calculated using MUSIC algorithm. Then the spatial smoothing algorithm is used to de-correlate. In the following, the cost function is constructed by the Lagrange multiplier method. Finally, a set of optimal weight vectors can be obtained through iteration. Simulation results show that the proposed method can effectively reduce the effect of angle estimation error in interference signal.
KW - ADAPTIVE BEAMFORMING
KW - DIRECTION-OF-ARRIVAL ESTIMATION
KW - ROBUSTNESS
UR - http://www.scopus.com/inward/record.url?scp=85174643106&partnerID=8YFLogxK
U2 - 10.1049/icp.2021.0849
DO - 10.1049/icp.2021.0849
M3 - Conference contribution
AN - SCOPUS:85174643106
VL - 2020
SP - 709
EP - 713
BT - IET Conference Proceedings
PB - Institution of Engineering and Technology
T2 - 5th IET International Radar Conference, IET IRC 2020
Y2 - 4 November 2020 through 6 November 2020
ER -