全文论及伪随机信号的生成原理;统计特性及无泄漏性的论证;磁带伪随机激振试验的实施技术以及具体实例.笔者认为,磁带伪随机激振具有信号源易于生成,测试简便快速,统计特性良好,谱形控制方便,能满足工程精度要求等优点,是一种适应于一般工程单位实施的模态试验技术. The whole paper deals with the principle of pseudo-random signal generation, the statistical characteristics and the proof of no leakage, the implementing technology of tape pseudo-random vibration test and the concrete example.I think the tape pseudo-random excitation has the advantages of easy to generate signal source, Good statistical properties, easy spectrum control, can meet the requirements of engineering accuracy, etc., is a kind of adaptation to the general engineering unit implementation of modal test technology.