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由于物探工作中广泛地应用了电子计算机,因此大大提高了数据处理与解释工作的速度与精度。目前,由于航空物探的发展,获得了大量的数据,对于这样大量的数据若只用以往空间域的处理方法与解释方法,虽然用高速电子计算机进行处理仍感不便,这就提出了怎样提高方法本身的速度。而频谱分析方法在作多种数据处理中比空间域方法快得多。那么如何进行频谱分析、空间域资料转换成频率域资料,频率域资料的解释等问题就是本讲座的主要内容。本讲座共分四讲:一、频谱分析的一般知识,二、快速富氏变换,三、频谱分析在位场变换中之应用,四、频谱分析在正反问题中之应用。
Due to the widespread use of electronic computers in geophysical work, the speed and accuracy of data processing and interpretation are greatly enhanced. At present, due to the development of aero-geophysics, a large amount of data are obtained. If such a large amount of data is processed and interpreted in the past only in the spatial domain, though it is still inconvenient to process it by a high-speed electronic computer, it is proposed how to improve the method Its own speed. The spectrum analysis method is much faster than the spatial domain method for a variety of data processing. So how to conduct spectrum analysis, the transformation of the spatial domain data into the frequency domain data, the interpretation of the frequency domain data and other issues is the main content of this talk. This lecture is divided into four parts: First, the general knowledge of spectrum analysis, two, Fast Fourier transform, three, spectrum analysis in the field of field applications, four, spectrum analysis in the application of positive and negative problems.