Ant-Colony-Optimization-Book

北大竞赛题,非常好的。好不容易才找到的东东！(North title race, very good. Hard to find the NEE!)

基于matlab的脉冲不变法巴特沃思低通滤波器设计(Based on the same method matlab pulse Butterworth low-pass filter design)

PADE降阶MATlab程序 降阶后的分子分母次数可以随意的给定(PADE reduction MATlab numerator and denominator after reduction procedure can be arbitrary given the number of)

时间序列的多步预测程序，希望对大家能都有所帮助(Time series of multi-step forecasting process)

奇异谱分解技术，与相空间重构相结合，对信号进行降噪处理(Singular spectrum analysis technology, combined with the phase space reconstruction of signal noise reduction)

基于PRBS码型产生QPSK和16QAM信号(QPSK and 16QAM signal generation based on PRBS code)

Angle Random Walk demonstration

基于matlab的音乐曲调模拟，挺有趣的一个程序。。(Based on the matlab music tunes simulation of, a very interesting program. .)

5阶delta-sigma Matlab仿真(Fifth-order delta-sigma Matlab simulation)

利用Matlab仿真软件，完成如图1所示的一个基本的数字通信系统。信号源产生0、1等概分布的随机信号，映射到16QAM的星座图上，同时一路信号已经被分成了实部和虚部，后边的处理建立在这两路信号的基础上。实部、虚部信号分别经过平方根升余弦滤波器，再加入高斯白噪声，然后通过匹配滤波器（平方根升余弦滤波器）。最后经过采样，判决，得到0、1信号，同原信号进行比较，给出16QAM数字系统的误码。(Using Matlab simulation software, as shown in Figure 1 to complete a basic digital communications systems. Signal source such as arise over the distribution of 0,1 random signal, is mapped to 16QAM constellation diagram, at the same time all the way the signal has been divided into real and imaginary parts, behind the deal with the establishment of these two signals in the basis. Real part, imaginary part of the signal, respectively, after a square root raised cosine filter, then add white Gaussian noise, and then through the matched filter (square root raised cosine filter). Finally, after sampling, the verdict has been 0,1 signal, to compare with the original signal is given 16QAM digital system error.)