基于LabVIEW和MATLAB混合编程的自适应滤波器设计

Design of LMS adaptive filter based on LabVIEW and MATLAB

LabVIEW是一种图形化虚拟仪器编程语言,具有强大的信号处理功能,基于LabVIEW可以把自适应滤波器设计成为一个虚拟仪器系统,应用于实际工程,测试滤波器的实际性能。本文介绍了LabVIEW和MAT-ALB混合编程设计自适应滤波器的方法,其设计结构简单,具有较好的人机交互界面。为了验证设计方法的有效性,以LMS算法为例,进行仿真实验。仿真结果表明,所设计的自适应滤波器性能良好,可操作性强,可以适用于不同场合的信号处理。

LabVIEW is a figural virtual instrument program language, which has powerful digital signal processing function. Adaptive filters can be designed to a virtual instrument and applied to actual project to test the performance based on LabVIEW. The paper introduces the method of designing adaptive filter based on mixed program between LabVIEW and MATLAB which has simple design structure and good man-machine interaction interface. In order to verify the effectiveness, simulations are been given using LMS algorithm. The simulation results show that the adaptive filter has good performance, the operable performance is also powerful, and can be applied to many different situation of signal progressing.