OPTIMAL WEIGHT EXTRACTION FOR ADAPTIVE BEAMFORMING USING SYSTOLIC ARRAYS

Systolic algorithms and architectures for parallel and fully pipelined instantaneous optimal weight extraction for multiple sidelobe cancell er (MSC) and minimum variance distortionless response (MVDR) beamforme r are presented. The proposed systolic parallelogram array processors are parallel and fully pipelined, and they can extract the optimal wei ghts instantaneously without the need for forward or backward substitu tion. We also show that the square-root-free Givens method can be easi ly incorporated to improve the throughput rate and speed up the system . As a result, these MSC and MVDR systolic array weight extraction sys tems are suitable for real-time very large scale integration (VLSI) im plementation in practical radar/sonar systems.