1、 基于 MATLAB 的模拟滤波器的设计 摘 要 几乎在所有的工程技术领域中都会涉及到信号处理问题 ，滤波器作为信号处理 的重要组成部分，已发展的相当成熟。本论文首先介绍了滤波器的滤波原理以及模拟 滤波器、数字滤波器的设计方法。重点介绍了模拟滤波器的设计和仿真。系统研究了 模拟滤波器（包括巴特沃斯滤波器和切比雪夫滤波器）的设计原理和方法，并在此基 础上论述了模拟滤波器（包括低通、高通、带通、带阻）的设计。在此基础上，用 MATLAB 虚拟实现模拟滤波器。此设计扩展性好，便于调节滤波器的性能，可以根据 不同的要求在 MATLAB 上加以实现。通过 MATLAB 的仿真与实现，可以看出传统的模拟
2、滤波器设计方法繁琐且不直观，而 MATLAB 具有较严谨的科学计算和图形显示这一优 点，使设计结果显示的更加直观，而且对滤波器的精度也有了很大的提高，能更好的 达到预期效果。同时，又对模拟滤波器低通至高通、带通、带阻的转换进行了理论上 的阐述。 关键字： 滤波/模拟滤波器/MATLAB MATLAB BASED DESIGN OF ANALOG FILTERS ABSTRACT In almost all areas of engineering and technology will be related to signal processing, signal processing fil
3、ter as an important component of the development has reached a mature state. This paper introduces the principle of filter and filter analog filters, digital filter design method. Focuses on the design of analog filters and simulation.Analog filter system (including the Butterworth filter and Chebys
4、hev filter) design principles and methods, and on this basis on the analog filters (including low-pass, high pass, band-pass, band-stop) design. On this basis, the use of virtual realization of analog filters MATLAB. Good scalability of this design, easy to adjust the performance of filters can be based on different requirements to be in the realization of MATLAB.Through the MATLAB simulation and realization of, we can see that the traditional design method of analog filters and do not intuitive
