基于DSP-TMS320C5402的FIR数字滤波器设计及实现

Design and Implementation of Digital FIR Filter Based on DSP TMS320C5402

简述了FIR数字滤波器的特点,以及其在DSP上实现的原理.基于TMS320C5402芯片的数字信号处理功能,通过使用已设计的FIR滤波器系数,运用MAC指令、循环缓冲寄存器、块循环寄存器对一个混合信号进行带通滤波处理.实验结果表明,所仿真的FIR滤波器能实现滤波功能.

This paper introduces the features of digital FIR filter and its implementation on DSP based on the DSP functions of TMS320C5402 chip. The paper employs MAC command, circular buffer register, and block circular register to filter the composite signal by means of the coefficients of FIR filters designed by authors. The result of experiments shows that the FIR filter can realize the filtering task.