析了利用PMAC--PCI的PID调节功能提高数控系统的精度、降低系统跟踪误差的重要性。建立了基于PMAC—PCI的控制算法，并通过PID参数的调整加以验证。-Analysis of the use of PMAC- PCI regulatory function of the PID to improve the accuracy of numerical control system to reduce the importance of the system tracking error.

University of numerical analysis algorithms, Based on the time delay estimation of power spectrum, Channelized receiver based on multi-phase structure.