Optimizing the analog bit function in a diversity radio receiver

Details Optimizing the analog bit function in a diversity radio receiver Optimizing the analog bit function in a diversity radio receiver

1993-05-21

1996-01-02

Chin, Stephen

Pulse or digital communications

Receivers

Interference or noise reduction

455138, 455139, H04B 710, H04L 102

Patent

active

054815690

ABSTRACT:
A radio link for a digital radio transmission system having spatial and/or angular diversity is optimized in real time by first varying the relative phase .phi. between the two channels to locate an absolute minimum of the analog bit error rate function BER.sub.n (.phi.) with both channels having the same nominal attenuation level, and then by unbalancing the relative attenuation level T of the two channels in order to optimize the dispersion Ban.sub.n (T) of the recombined data spectrum while holding the relative phase at its previously optimized value.

REFERENCES:
patent: 4972434 (1990-11-01), Polozec et al.
Yeh et al, "A new approach to space diversity combining in microwave digital radio", AT&T Tech J, v 64 No. 4, Apr. 1985, pp. 885-905.
Casiraghi et al., "MiBS IF combiner for space and angle diversity in digital radio: First trial results", Proc 22nd European Microwave Conf, Aug. 1992, pp. 1143-1148.

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