发明授权
- 专利标题: Rotationally invariant non-coherent burst coding and decoding
- 专利标题(中): 旋转不变非相干突发编码和解码
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申请号: US12706972申请日: 2010-02-17
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公开(公告)号: US08095849B1公开(公告)日: 2012-01-10
- 发明人: Lawrence J. Karr , Phillip B. Hess
- 申请人: Lawrence J. Karr , Phillip B. Hess
- 申请人地址: US CA Santa Clarita
- 专利权人: Alfred E. Mann Foundation for Scientific Research
- 当前专利权人: Alfred E. Mann Foundation for Scientific Research
- 当前专利权人地址: US CA Santa Clarita
- 代理商 Malcolm J. Romano
- 主分类号: H03M13/00
- IPC分类号: H03M13/00
摘要:
An apparatus, system and method can be arranged for coding and/or decoding with a phase invariant coding scheme that is useful for short burst signaling devices. 10-bit data is mapped into a 12-bit data with a non-coherent burst code mapper. A parity generator creates a 12-bit parity data to form a 24-bit extended binary Golay code from the 12-bit data. The values for selected bit fields in the 12-bit data and 12-bit parity data are swapped to generate I and Q data such that sensitivity to changes in rotational phase is removed. I and Q data can be used by a transmitter to transmit a rotationally-invariant signal. On receipt, I and Q signals can be recovered, reverse swapped to generate the parity and data signals, and remapped to recover the transmitted 10-bit data. The receiver can also be arranged to use a soft decoding method for improved signal integrity.
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