Time-domain programmable digital multi-beamforming system

A new beamforming method in time-domain is described in this paper. Based on the pipe line architecture, the variable digital filtering algorithm, rising sampling rate (interpolation), down-sampling rate (decimation), and optimum weighting are combined. The high accuracy time-delay compensation for multi-beam signal processing system is designed by high speed RAM (Random Access Memory) and VLSI (Very Large Scale Integrated) DSP (Digital Signal Processing) chips. Comparing with the traditional beamforming method, the new method presented in this paper is highly accurate, less complex in computation, easy progranunable and have compact hardware architecture. The design philosophy of time-domain RAM-dynamic bearnforming method and hardware implementation is given.