摘要
为了研究锁相环的时域跟踪性能,本文从环路的组成出发,构建了锁相环的模型图并求出传递函数。再利用时域分析法求出理想二阶环在暂态相位信号作用下的相位误差响应。并用MATLAB仿真出不同阻尼系数作用下的波形图。从而推广出阻尼系数大的高阶环的相位跟踪性能好,抗干扰性强,稳定性好。本文从定量和定性上得出的结论,对锁相环的设计具有一定的指导意义。
In order to study the time-domain phase-locked loop tracking performance, according to the loop composing, the author constructs the model diagram and to calculate the PLL transfer function. Then calculated error signal response under transient phase of the second loop phase using the ideal time-domain analysis. MATLAB simulation with different damping effect of the waveform is provided. So we can conclude that a high damping ring have large phase tracking performance, strong anti-interference, good stability. In this paper, quantitative and qualitative conclusions on the design of PLL with some guidance have been obtained.
出处
《电子测试》
2010年第7期60-62,80,共4页
Electronic Test
