一、前言随机数据处理和分析,已经成为许多行业进行科学研究的重要手段。六十年代中期,随着电子计算机的广泛应用,人们寻求用电子计算机解决随机数据处理和分析的方法。在这种情况下,快速富里哀变换(FFT)显示了极大的优越性。采用FFT原理制造出来的设备,具有以下特点:分析和处理的结果准确,可以满足高的频率分辨率;由于运算速度快可以作 I. Introduction Random data processing and analysis has become an important means of scientific research in many industries. In the mid-1960s, with the widespread use of electronic computers, people sought computerized solutions to the problems of random data processing and analysis. In this case, Fast Fourier Transform (FFT) shows great superiority. The device manufactured by using the FFT principle has the following characteristics: the result of the analysis and processing is accurate, and the high frequency resolution can be satisfied; the operation speed can be used as fast