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Trellis shaping and spectral nulls.
| Content Provider | CiteSeerX |
|---|---|
| Author | Forster, Josef |
| Abstract | Abstract. A line coding scheme based on trellis shaping is presented. The trellis shaping algorithm is used to obtain a signal with a controlled running digital sum as well as to achieve a Gaussian{like amplitude density distribution. The former causes a rst order spectral null at zero frequency, while the latter allows to preserve a signi cant part of the gain attained by pure trellis shaping. Spectral nulls at arbitrary frequencies as well as second order nulls can easily be realized. The complexity of a slightly modi ed four state Viterbi algorithm is su cient toachieve the major part of the possible gain. 1. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Amplitude Density Distribution State Viterbi Algorithm Trellis Shaping Spectral Null Rst Order Spectral Null Spectral Null Second Order Null Pure Trellis Su Cient Latter Allows Possible Gain Controlled Running Digital Sum Major Part Signi Cant Part Arbitrary Frequency |
| Content Type | Text |