摘要
本文分别用凯塞窗函数法和切比雪夫最佳逼近法,在MATLAB环境下实现了面向电力系统应用的FIR数字低通滤波器的设计和仿真,得出基于切比雪夫最佳逼近法设计的数字低通滤波器最为理想,之后讨论了滤波器阶次和权向量对纹波的影响。最后介绍了基于DSP器件设计数字滤波器的算法实现和部分程序代码。
The design of low pass FIR filter applying in electric system by using both window function and chebyshev approximation methods in MATLAB software were introduced,and the conclusion was gotten that the filter design based chebyshev approximation methods was best.Then, the influence of filter's step and weight wector upon filter's deviation was also discussed . The arithmetic realization based on DSP device,as well as part of programme code were presented at the ending of this paper.
出处
《微计算机信息》
北大核心
2008年第8期81-83,共3页
Control & Automation
基金
国家自然科学基金资助(50475117)
