振荡线性化舵机相移检测滤波器设计

Design of Phase-shift Detection Filter of Self-oscillation Linear Actuator

利用正交载波振幅调制方法设计了自振荡线性化舵机的相移检测滤波器.介绍了滤波器的设计思路,建立了滤波器和检测连接电路的原理框图,分析了滤波器的参数选择和滤波器频域特性,并对理想信号和实际舵机信号的滤波效果进行了仿真.计算结果表明,该滤波器有很高的相移检测精度.

Shift detection filter of self-oscillation linear actuator phase is designed with quadrature carrier amplitude modulation method.A filter design thoughts is introduced,then the principle diagram of filter and circuit is built for testing.The filter parameters and filter frequency domain characteristics are analyzed,the filter with ideal signal and actual output signal are simulated.The results show that the filter is feasible and has high accuracy in phase shift detection.