Data decoding device with error rate estimation

Details Data decoding device with error rate estimation Data decoding device with error rate estimation

1992-11-13

1995-05-09

Chin, Stephen

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

371 51, H04L 2706

Patent

active

054147379

ABSTRACT:
A data decoding device eliminates the need for encoding by a decoder for estimating an error rate and can estimate the error rate at a high precision even if an error is included. A square error sum is calculated by an error calculator based on an output of an equalizer. A estimated error rate is determined based on the error sum, a likelihood is determined based on the estimated error rate, and soft discrimination decoding is made based on the likelihood and the output of the equalizer.

REFERENCES:
patent: 4234954 (1980-11-01), Lange et al.
Takashi Kamitake et al., "Trellis Coding 14.4 kb/s Data Modem Implemented with a Single-chip High-speed Digital Signal Processor", pp. 479-484, IEEE/IEICE Global Telecommunications Conference, Nov. 15-18, 1987.
Richard W. Koralek et al., "Viterbi Decoder Synchronization And BER Measurement Using Metric Values", pp. 354-363, Proceedings of the Sixteenth Annual Allerton Conference on Communication Control and Computing, Oct. 4-6, 1978.
Mitsuru Uesugi, et al. "Adaptive Equalization in TDMA Digital Mobile Radio", IEEE Global Telecommunications Conference and Exhibition, pp. 0095-0101, Nov. 27-30, 1989.

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