中文说明：该程序为认知无线电中，基于发射机的三种经典算法之一的匹配滤波器方法，适合初学者进行认知无线电方向的研究，还有初次编写matlab程序着学习使用，程序已经经过很多次验证，觉得无错。欢迎下载！滤波器是一种选频装置，可以使信号中特定的频率成分通过，而极大地衰减其它频率成分。在测试装置中，利用滤波器的这种选频作用，可以滤除干扰噪声或进行频谱分析。广义地讲，任何一种信息传输的通道（媒质）都可视为是一种滤波器。因为，任何装置的响应特性都是激励频率的函数，都可用频域函数描述其传输特性。因此，构成测试系统的任何一个环节，诸如机械系统、电气网络、仪器仪表甚至连接导线等等，都将在一定频率范围内，按其频域特性，对所通过的信号进行变换与处理。本节所述内容属于模拟滤波范围。主要介绍模拟滤波器原理、种类、数学模型、主要参数、ＲＣ滤波器设计。尽管数字滤波技术已得到广泛应用，但模拟滤波在自动检测、自动控制以及电子测量仪器中仍被广泛应用。
English Description：
The program for cognitive radio, transmitter based on matched filter in one of the three classical methods for beginners to cognitive radio research, and write a MATLAB program for the first time to learn how to use, the program has been repeatedly verified, feel free. Welcome to download!Filter is a kind of selective device specific frequency component in the signal can be passed, while substantially attenuating other frequencies. In the testing device, utilize this frequency selection of filter effects, can filter out noise or interference to spectrum analysis. Broadly speaking, any kind of information transmission channels (media) can be seen as a filter. Because, any device is a function of the excitation frequency response characteristics, describes its transmission characteristics are available in the frequency domain functions. Therefore, the test system consisting of any link, networks such as mechanical, electrical, instrumentation, and even wires, and so on, are in a ce