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《Journal of Chinese Computer Systems》 2008-08
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Study on Digital Signal Processing about the Time-domain and Frequency Domain Technology Coordinate Overlapping Research

LIANG Jian-wu,HE Zhi-bin(College of Information Science and Engineering,Central South University,Changsha 410075,China)  
This article studies on original signal from Time-Domain to Frequency-Domain conversion process and their characteristics through FFT.Then it analysis the characteristics of the folding frequency,the greatest frequency resolution and the sampling frequency and their relations,It puts forward a algorithm through Conversion factor proportional to the number of coordinates.So,the Time-Domain and Frequency-Domain digital coordinates overlap.Computer let it easy to filter or extract a certain frequency in this process.The simulation shows that the method of signal processing provides a simple and practical realization of specific programs,which provides a new way of thinking to the current signal processing.
【Fund】: 国家自然科学基金项目(60173041)资助
【CateGory Index】: TN911.7
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