发明名称 |
Signal processing method and data processing method and apparatus |
摘要 |
The present invention discloses a signal processing method and a data processing method and apparatus. A time-domain to frequency-domain signal processing method includes: pre-processing time-domain data; pre-rotating the pre-processed data by using a rotation factor a·WNn+0.5; performing a discrete Fourier transform (DFT) of N/4 points on the pre-rotated data; and post-rotating the data transformed by the DFT by using a rotation factor b·WNk+0.5 to obtain frequency-domain data. A frequency-domain to time-domain signal processing method includes: twiddling frequency-domain data; pre-rotating the twiddled data by using a rotation factor c·WNk+0.5; performing a DFT of N/4 points on the pre-rotated data; and post-rotating the data transformed by the DFT by using a rotation factor d·WNn+0.5; and post-processing the post-rotated data to obtain time-domain data. The present invention increases the efficiency of signal processing.
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申请公布号 |
US8554818(B2) |
申请公布日期 |
2013.10.08 |
申请号 |
US20100980001 |
申请日期 |
2010.12.28 |
申请人 |
ZHANG DEMING;LI HAITING;HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
ZHANG DEMING;LI HAITING |
分类号 |
G06F17/14 |
主分类号 |
G06F17/14 |
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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