Patent
Space communication system for compressed data with a concatenated Reed-Solomon-Viterbi coding channel
Robert F. Rice,Edward E. Hilbert +1 more
- 23 Jun 1975
TL;DR: In this paper, a space communication system incorporating a concatenated Reed Solomon Viterbi coding channel is disclosed for transmitting compressed and uncompressed data from a spacecraft to a data processing center on Earth.
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Abstract: A space communication system incorporating a concatenated Reed Solomon Viterbi coding channel is disclosed for transmitting compressed and uncompressed data from a spacecraft to a data processing center on Earth. Imaging (and other) data is first compressed into source blocks which are then coded by a Reed Solomon coder and interleaver with parameters J=8, E=16, I=16, followed by a convolutional encoder of parameters k=7, ν=2. The received data is first decoded by a Viterbi decoder, followed by a Reed Solomon decoder and deinterleaver. The output of the latter is then decompressed, based on the compression criteria used in compressing the data in the spacecraft. The decompressed data is processed to reconstruct an approximation of the original data-producing condition or images.
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Citations
Patent
Method and apparatus for digital audio broadcasting and reception
John L. Murphy,Mark J. Rich +1 more
- 11 Apr 1991
TL;DR: In this paper, a radio broadcasting system is provided for transmitting and receiving through free space a composite signal consisting of a frequency modulated (fm) analog signal and a multicarrier modulated digital signal which is especially adapted to be resistive to multipath degradation.
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Technique for improving the operation of decision feedback equalizers in communications systems utilizing error correction
Jin-Der Wang,Jean-Jacques Werner +1 more
- 09 Jun 1989
TL;DR: In this paper, the combined benefits of decision feedback equalization and error correction coding are realized in a communications system by the use of a plurality of coders and decoders respectively disposed in the transmitter and receiver.
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Siavash Alamouti,Andrew S. Wright,William D. Haymond +2 more
- 22 Nov 1995
TL;DR: In this article, a cellular communication system provides for trellis encoding/decoding of a 16-Star QAM signal, which includes a transmitter circuit and a receiver circuit.
88
Patent
Digital encoder-decoder
Daniel J. Coombes,Martin V. Seitz +1 more
- 07 Dec 1979
TL;DR: In this article, a digital encoding and decoding system suited for use in a mobile trunked dispatch communication system capable of error correction, error detection, and detection of loss of synchronization is presented.
83
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Communication system utilizing Reed-Solomon code to achieve auto frame synchronization acquistion
Edward S. Zuranski,Kenneth D. Ko,Jamal Haque,Shrenik P. Patravali,Manuel I. Rodriguez,Keith A. Souders,Anthony A. Tzouris +6 more
- 23 Feb 1998
TL;DR: In this paper, the synchronization error generator is configured as a leaking integrator to provide a synchronization error signal in response to a relatively large number of frame error signals occurring in a period of time.
79
References
Viterbi Decoding for Satellite and Space Communication
J. Heller,I. Jacobs +1 more
TL;DR: Convolutional coding and Viterbi decoding, along with binary phase-shift keyed modulation, is presented as an efficient system for reliable communication on power limited satellite and space channels.
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Practical applications of coding
TL;DR: Convolutional coding with soft-decision Viterbi decoding has emerged as a standard technique and is particularly well adapted to the commnnication satellite channel.
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Patent
Concatenated burst-trapping codes
P Trafton
- 26 Nov 1971
TL;DR: In this article, it is disclosed that in a data transmission system having a source of binary information data, encoding means responsive to the binary information for encoding the data and applying the resulting code words to a communication link.
18
A hybrid coding scheme for discrete memoryless channels
TL;DR: It is shown that the hybrid technique reduces the variability of the amount of sequential decoding computation, and asymptotic results for the probabilities of error and buffer overflow as functions of the system complexity are derived.