一些谐振系统象许多物理系统一样,受高电平激励时,也呈现非线性特性。这种非线性导致谐振频率随激励功率而变化(幅——频效应)并造成相位和振幅响应失真,随着这些效应由此而产生是两个或多个稳定状态、谐波以及分谐波及滞后现象,最终形成可能稳定状态——无秩态。本文对高Q的和低Q的谐振器两种情况,研究了分谐波的产生阳无秩态的形成,苜先提出了这些非线性系统模式,然后给出了石英晶体谐振器(高Q系统)和锁相环(低Q系统)两种实际系统的测量结果。
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[1]华斌赋.谐振器内的无秩态与异常噪声[J].无线电工程,1987(03):96-99+89.
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