一引言波形分析、频谱分析与随机数据处理是近年现代科学技术中正在兴起的和迅速发展着的边缘学科,被统称为“信号处理”。随着科学技术、生产和国防建设事业的发展,随着技算机技术和电子技术的发展,随着人类各种生产活动和社会活动的现代化,每时每刻都需要发生、传递和记录大量的各种信号(数据)。如科学试验中的各种振动、应 I. INTRODUCTION Waveform analysis, spectrum analysis and random data processing are the emerging and rapidly growing frontiers of modern science and technology. They are collectively referred to as “signal processing.” With the development of science and technology, production and national defense construction, with the development of computer technology and electronic technology, with the modernization of various productive activities and social activities of human beings, it needs to happen every moment, transmit and record a large number of Of various signals (data). Such as scientific experiments in a variety of vibration should be