发明名称 |
Multilevel QAM demodulator, multilevel QAM demodulation method, and wireless communication system |
摘要 |
A multilevel QAM demodulator includes a phase difference calculation unit calculating a phase difference signal based on the common phase signal and orthogonal signal after the phase rotation compensation, a phase shift amount calculation unit calculating a phase shift amount indicating a degree of a phase shift based on the common phase signal and orthogonal signal after the phase rotation compensation and phase noise compensation, and a correction unit correcting the phase difference signal based on the phase shift amount. A phase rotation is performed for the phase noise compensation based on the phase difference signal corrected by the correction unit. |
申请公布号 |
US8265192(B2) |
申请公布日期 |
2012.09.11 |
申请号 |
US20080328886 |
申请日期 |
2008.12.05 |
申请人 |
SUZUKI YUUZOU;NEC CORPORATION |
发明人 |
SUZUKI YUUZOU |
分类号 |
H04L25/34 |
主分类号 |
H04L25/34 |
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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