Pulse or digital communications – Repeaters – Testing
Patent
1994-09-28
1995-09-12
Gregory, Bernarr E.
Pulse or digital communications
Repeaters
Testing
375205, 375206, 375340, 375341, 370 18, 370 19, 370 21, 370 22, 371 43, 380 34, H04B 169, H04B 1707, H04J 1304
Patent
active
054504538
ABSTRACT:
Non-coherently demodulated signals are efficiently decoded using a non-complex system that is independent of the fading statistics of the channel. A symbol metric calculator (406) receives a signal-to-noise ratio (404) and symbols from a non-coherently demodulated signal (402) to efficiently produce weighted symbol metrics (408). A symbol metric deinterleaver (410) is then used to deinterleave the weighted symbol metrics. A decoder (414) produces a decoded bit sequence(416) based on the deinterleaved weighted symbol metrics (412).
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Principles of Spread Spectrum Multiple Access Communication, A. J. Viterbi, 1993 Qualcomm Incorporated, Nov. 16, 1993, Chapter 4, pp. 73-122.
Gregory Bernarr E.
Motorola Inc.
Stockley Darleen J.
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