Multichannel adaptive equalization for improved performance in LOS digital radio

Abstract

Multichannel adaptive equalization is a technique which combines (spatial) beamforming and (temporal) equalization into a single filter structure. It is capable of both compensating for channel-induced linear distortions and rejecting broadband interference. The paper compares the performance of multichannel adaptive equalization to both adaptive beamforming and single channel, fractionally-spaced decision feedback equalization for conditions common to line-of-sight digital radio. While the results are preliminary, the multichannel adaptive equalizer shows clear advantages over the performance of the other multipath fading compensation techniques.<>