发明名称 |
Matched spectral null codes with partitioned systolic trellis structures |
摘要 |
Apparatus and method for transmitting spectral null sequences of a spectrally-constrained code over a partial response channel. A Viterbi detector receives the sequences from the channel and has a time-varying detector trellis structure derived from a running-digital-sum (RDS) trellis structure that requires each one of a set of quasicatastrophic sequences to be generated only from a trellis state corresponding to a respective preselected unique RDS value.
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申请公布号 |
US5537424(A) |
申请公布日期 |
1996.07.16 |
申请号 |
US19940289811 |
申请日期 |
1994.08.12 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
KARABED, RAZMIK;RAE, JAMES W.;SIEGEL, PAUL H.;THAPAR, HEMANT K. |
分类号 |
H03M13/31;H03M13/41;H04L25/497;(IPC1-7):H03M13/12 |
主分类号 |
H03M13/31 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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