chap8

Solving knapsack with MATLAB

music change speed中，jiasu.m是让一首音乐旋律速度加快播放，jiansu.m是让一首音乐旋律速度减慢播放，两个情况下都不改变音乐的基调。(Music change speed, jiasu.m is to allow a faster melodic playing, jiansu.m is to make a musical rhythm to slow down play, the two cases do not change the tone of music.)

说明：  基于GUI界面的matlab演示程序，从简单的学起，从友好的交互页面学起。(GUI-based interface matlab demo program, from simple to learn, from the friendly and interactive pages to learn.)

清音的对数幅度谱，短时过零率，平均能量，基音周期(Voiceless logarithmic amplitude spectrum, short-term zero crossing rate, average energy, pitch period)

本程序实现对随机信号的8PSK调制，程序里面有详细注释，很容易换成想要信号的8PSK调制，欢迎下载。(This program implements the random signal 8PSK modulation, which has detailed program notes, easily replaced want 8PSK modulation signal, welcome to download.)

微带天线理论与应用微带天线理论与应用微带天线理论与应用(jidaitianxianjidaitianxianjidaitianxian)

本文提供了matlab实现的lms自适应滤波源代码以及结果分析，对不同的仿真波形进行了比较并对结果进行了详尽的分析，学习信号处理的同学可以参考一下(This article provides an implementation of the matlab source code for lms adaptive filtering, and analyzing the results of the simulation of different waveforms and the results were compared with a detailed analysis。)

说明：  最大熵准则图像分割,matlab程序互相学习一下(Maximum entropy image segmentation, matlab program learn from each other about)

读取星历观测文件GPS和北斗卫星的可见卫星数作为输出(read ephemeris observation file to give out GPS and Beidou visible satellite number)

孙志忠书：偏微分方程数值解，第三章第四节，抛物方程的Crank-Nicolson格式(Crank-Nicolson Type)