Receiver comprising at least two receive branches

Details Receiver comprising at least two receive branches Receiver comprising at least two receive branches

1991-12-06

1994-03-22

Kuntz, Curtis

Pulse or digital communications

Spread spectrum

Direct sequence

375102, 375 96, 4552781, H04B 710

Patent

active

052971716

ABSTRACT:
A diversity receiver having at least two receive branches, and only one equalizer. Each receive branch includes a matched filter and circuits for forming an autocorrelation function for each estimated impulse response of the individual receive branches. A first adder circuit adds the output signals, weighted with weighting factors of the matched filters to form a first sum. A second adder circuit add the autocorrelation functions weighted with weighting factors to form a second sum. The weight factors are approximately inversely proportional to the instaneous noise power in each receive a branch. An equalizer evaluates the two sums.

REFERENCES:
patent: 5031193 (1991-07-01), Atkinson et al.
patent: 5127025 (1992-06-01), Okanoue
patent: 5179575 (1993-01-01), Pierce, deceased et al.
Correleavtive and Iterative Channel-Estimation in Adaptive Viterbi Equaliserz for TDMS Mobile Radio, Fachberichten No. 109, VDE Verlag. pp. 363-368.

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