提出了一种取代数字信号处理器的基于μnsp微控制器设计滑动平均滤波器的方法.该设计在进行信号滑动平均运算时仅需10n+6个时钟周期,极大地提高了执行速度,同时也能充分发挥微控制器的控制功能.通过实现5点滑动平均滤波器,证实了这种设计可以在比数字信号处理器系统成本更低的硬件环境中实现信号实时处理.这种设计不仅可以快速完成滤波算法而且能够简化系统设计,降低成本. A method of designing sliding average filter based on μnsp micro-controller instead of digital signal processor is proposed.It only needs 10n + 6 clock cycles for signal average moving operation, which greatly improves the execution speed, meanwhile Can take full advantage of the microcontroller’s control functions.Through the realization of 5-point sliding average filter, this design can confirm the real-time signal processing in a hardware environment lower cost than the digital signal processor system .This design can not only fast Complete the filtering algorithm and can simplify system design and reduce costs.