Method for source-controlled channel decoding by expanding the V

Details Method for source-controlled channel decoding by expanding the V Method for source-controlled channel decoding by expanding the V

1993-07-22

1996-04-23

Baker, Stephen M.

Excavating

371 45, H03M 1312

Patent

active

055110819

ABSTRACT:
Improved Viterbi decoding of radio signals of the type calculating a metric increment ##EQU1## wherein .lambda..sub.k is calculated at time intervals indexed by k, i is a data bit position index, y is a received value, x is a coded bit of a predetermined sequence, and a is a fading factor, uses a metric addition B.sub.k according to the equation ##EQU2## where B.sub.k is a function of the quantity

REFERENCES:
Hagenauer, J., "Forward Error Correction Coding for Fading Compensation in Mobile Satellite Channels", IEEE J. on Selected Areas in Communications, vol. SAC-5, No. 2, Feb. 1987, pp. 215-225.

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