【摘要】 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.更多还原

【Abstract】 With the generation principle, statistic characteristic and non-leakage of pseudo random signal proven, a technique of pseudo random exciting by means of tape recorder for modal test is pre(?)ented comprehensively. Several application examplea demon(?)trate that the method is a good modal test technique for common manufactories and laboratories, ease for signal generation, satisfaction of signal qualities, convenience to control spectrum, and simplicity of test equipments.更多还原