发明名称 |
Optimal two-layer coherent demodulation for D-PSK (Differential Phase Shift Keying) |
摘要 |
A D-PSK demodulator utilizes a two-layer coherent approach to estimate the phase shift of adjacent symbols. There is generated a probability set of each received symbol being one of possible constellation values. There is also generated a probability set of each of possible phase difference between two adjacent symbols. This probability set is then converted into soft bit information according to specific mathematical operation.
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申请公布号 |
US7860191(B2) |
申请公布日期 |
2010.12.28 |
申请号 |
US20070851753 |
申请日期 |
2007.09.07 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
QI YIHONG;TOUZNI AZZEDINE |
分类号 |
H03D3/22;H04L27/22 |
主分类号 |
H03D3/22 |
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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