Invention Application
- Patent Title: Signal Processing Method and Data Processing Method and Apparatus
- Patent Title (中): 信号处理方法及数据处理方法及装置
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Application No.: US13086183Application Date: 2011-04-13
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Publication No.: US20110185001A1Publication Date: 2011-07-28
- Inventor: Deming ZHANG , Haiting Li
- Applicant: Deming ZHANG , Haiting Li
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Priority: CN200910150720.5 20090624
- Main IPC: G06F17/14
- IPC: G06F17/14

Abstract:
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·WNn+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·WNn+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.
Public/Granted literature
- US08145695B2 Signal processing method and data processing method and apparatus Public/Granted day:2012-03-27
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