Title :
Multichannel adaptive equalization for improved performance in LOS digital radio
Author :
North, Richard C. ; Zeidler, James R.
Author_Institution :
NCCOSC, San Diego, CA, USA
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
Keywords :
adaptive equalisers; array signal processing; decision feedback equalisers; digital filters; digital radio; fading; interference suppression; multipath channels; radiofrequency interference; LOS digital radio; broadband interference; channel-induced linear distortions; filter structure; fractionally-spaced decision feedback equalization; line-of-sight digital radio; multichannel adaptive equalization; performance; spatial beamforming; temporal equalization; Adaptive equalizers; Adaptive filters; Array signal processing; Bandwidth; Decision feedback equalizers; Digital communication; Fading; Filtering; Frequency; Interference cancellation;
Conference_Titel :
Military Communications Conference, 1994. MILCOM '94. Conference Record, 1994 IEEE
Conference_Location :
Fort Monmouth, NJ
Print_ISBN :
0-7803-1828-5
DOI :
10.1109/MILCOM.1994.473824