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近十年来,在数字信号处理方面取得了重大成就。这种数字处理方法已广泛地用于解决以下各种问题,诸如雷达,声纳、声诊断学、地质和全息处理,以及研究言语和音乐等方面。促进其发展的原因,一方面是由于理论和应用研究的发展,另一方面是由于廉价的集成微电路的大量问世。在有关的评论(文献1,2,4)和专题报告(文献3-6,8)中已总结了这方面的研究成果。快速付立叶变换算法的产生,为计算离散付立叶变换提供了有效方法。因此,数字信号处理在频谱分析中得到特别广泛的应用。这可由以下介绍的情况中得到证实:
In the past decade, significant achievements have been made in digital signal processing. Such digital processing methods have been widely used to solve various problems such as radar, sonar, acoustic diagnostics, geological and holographic processing, and research on speech and music. The reason for its development is due to the development of theory and applied research on the one hand and the large number of low-cost integrated microcircuits on the other hand. The research findings in this area have been summarized in relevant comments (Documents 1, 2 and 4) and in thematic reports (Articles 3-6 and 8). The generation of fast Fourier transform algorithm provides an effective method for computing discrete Fourier transform. Therefore, digital signal processing has gained a particularly wide range of applications in spectrum analysis. This can be confirmed by the following scenario: