基于多率信号处理的测控信号动态模拟方法

Dynamic Simulation of TT&C Signal Based on Multirate Signal Processing

针对测控信号的大动态模拟问题,提出一种基于多率信号处理的动态模拟方法。该方法采用现有的存储延时方法对存储的静态测控信号实现整数倍采样间隔延时,并结合多率信号处理技术对整点延时后的信号实现小数采样间隔延时,有效地提高了动态模拟精度,解决了测控信号大动态高精度模拟问题。仿真分析表明,该方法能适用于不同体制测控信号的大动态高精度模拟,为测控设备动态性能测试过程中的动态模拟提供了一种实用方法。

A processing method,based on multirate signal processing,is proposed to implement the high dynamic simulation of TT＆C signal.It implements the integer delay of the static data by store-delay,and implements the fraction delay by multirate signal processing,which can improve the simulation accuracy effectively and solve the problem of high dynamic simulation of TT＆C signal.The simulation results show that the method is able to realize high accuracy and high dynamic simulation of TT＆C signals with different modulations.The method provides a good way for the dynamic simulation in the dynamic performance test of TT＆C equipment.