摘要
传统的数字滤波器设计主要依靠理论公式推导,得出相关参数,而对利用这些参数设计的滤波器的真实效果没有感性认识,从而无法对参数进行进一步优化。针对上述情况,提出了一种联合使用MATLAB与QuartusⅡ实现FIR(有限冲击响应)滤波器的设计方案。结合实例介绍了窗函数法FIR滤波器的设计流程,给出了利用MATLAB与QuartusⅡ进行软件验证和硬件仿真的设计步骤。此方法能够直观地检验滤波器的设计效果,便于优化设计参数、提高设计效率和成功率。
Traditionally, we use theoretical formula to obtain some correlative parameter when designing a digital filter. But, in this way, it can＇t bring any visual cognition to the actual result of the filter. So it is impossible that optimizing the parameter according to the actual result. In order to solve this question, the paper presents a design method for FIR digital filter based on MATLAB and Quartus Ⅱ. And through this example it gives the design flow. The result of the software and hardware simulation is analyzed by using of MATLAB and Quartus Ⅱ. It can easily check up the results and advance the efficiency of the design.
出处
《电子工程师》
2008年第2期25-27,共3页
Electronic Engineer
