guiexample

利用大整数问题实现catalan数的求解，catalan数的计算涉及到互质问题(The use of large integer problems solving to achieve catalan number, catalan calculation of the number of issues related to coprime)

Most practical filters exhibit steady roll-off characteristic, in contrast to the sharp transition from the pass and stop bands. The important families of filters are: Butterworth, Chebyshev and Elliptic. As part of this lab, we study and design Butterworth filters. Butterworth filters are simple to design and have a maximally flat pass band response. In contrast the Chebyshev and Elliptic filters are difficult to design and have ripples in pass/stop band but have sharper roll off characteristics than Butterworth filters.

这个源码包含了LT码的编码和解码过程啦。(The orginal code includs the encoding and decoding process of LT code)

基于matlab的程序代码，关于图像匹配的不变矩的代码(Based on the matlab program code, code of invariant moment of image matching)

在这个实验中，需要输入一个整周期内100个采样点的值，没有利用查找表的方法实现，而是直接在程序中输入100个采样点的值。2FSK/2PSK主要包括两部分2FSK信号发生器和2PSK信号发生器。2FSK信号发生器主要有分频器，m序列产生器，跳变检测，正弦信号发生器和DAC几个部分组成。2FSK的关键是通过判断信号跳变是来改变频率的变化，2PSK的关键是通过信号的跳变来改变相位的变化。(psk)

分析psk调制与解调的函数，并有误码率分析(psk)

说明：  indrumar pt Z80(buun)

说明：  有关于混沌系统的特性的一些仿真程序，试过的，可以正确运行，希望大家能够交流。(About some of the characteristics of chaotic system simulation program, tried, and can be run properly, I hope we can exchange.)

雷达信号处理中的一个重要过程：利用匹配滤波中的相关原理，对目标进行定位(Radar signal processing, an important process: the use of matched filtering principle to locate the target)

consits of tutorial