对群延迟测量方法的研究

摘要

基于对群延迟测量方法优化的目的，采用数字信号处理的方法，设计了计算群延迟的计算机算法。将一部分测量工作转化为计算机的计算工作，从而简化了测量方法，提高了测试效率。以滤波器为例进行测量实验。证明了测量方法和算法的正确性，从而得出了运用数字信号处理的方法并结合计算机快速计算的特点可以优化传统的信号测量方法，提高测量效率的结论。%Based on the purpose of optimizing the methodology of group delay measurement, a computer algorithm of calculation group delay by applying the methodology of digital signal processing is designed, and then converts some manual measurement workload to computer calculation. As a result, this article simplifies the methodology of group delay measurement and improves the measurement efficiency. Experiments by measuring the group delay of a filter prove this methodology is correct and come out a conclusion that the combination of digital signal processing and quick computer calculation could optimize the traditional signal measurement methodology and improve measurement efficiency.