Space-time Beamforming Technique for Receiving Multipath Signals
Cheng Wang, Yang Bin · 2021 IEEE 5th Information Technology,Networking,Electronic and Automation Control Conference (ITNEC) · 2021
In this paper, the broadband multipath signal reception problem is addressed and a space-time beamforming technique is presented to fully utilize the energy of multipath signals. First, we apply adaptive beamspace-based beamformer to cancel out uncorrelated interferences. Then its weights are utilized to estimate the channel response of desired signal, with which an eigenspace-based space-time beamformer is constructed for exploiting multipath energy. Theoretical analysis demonstrates the proposed technique can maximize the generalized signal-to-interference-plus-noise ratio of beamformer output. Simulation results are provided to illustrate its effectiveness.