Invention Grant
US07995678B2 System and method for communicating data using weighted bit soft decisions for differentially encoded phase shift keying
有权
用于使用加密比特软判决进行差分编码相移键控的数据传送系统和方法
- Patent Title: System and method for communicating data using weighted bit soft decisions for differentially encoded phase shift keying
- Patent Title (中): 用于使用加密比特软判决进行差分编码相移键控的数据传送系统和方法
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Application No.: US11946137Application Date: 2007-11-28
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Publication No.: US07995678B2Publication Date: 2011-08-09
- Inventor: James A. Norris , John W. Nieto
- Applicant: James A. Norris , John W. Nieto
- Applicant Address: US FL Melbourne
- Assignee: Harris Corporation
- Current Assignee: Harris Corporation
- Current Assignee Address: US FL Melbourne
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Main IPC: H04L27/22
- IPC: H04L27/22
Abstract:
A receiver includes a signal input for receiving a differentially-encoded quadrature phase-shift keyed (DEQPSK) communication signal. A demodulator performs bit decisions on a received coherent symbol and bit decisions on a received differential symbol. A processor is operative with the demodulator and scales a soft decision by a factor from 0 to 1 when the results of the bit decisions on the received coherent branch and differential branch are different.
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