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shipinfenxi

于 2013-08-05 发布 文件大小:6KB
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  时频分析方法提供了时间域与频率域的联合分布信息,清楚地描述了信号频率随时间变化的关系。(Time-frequency analysis method provides a time-domain and frequency domain, the joint distribution of information that clearly describes the signal frequency versus time relationships.)

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