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关于弹簧连接耦合摆的计算模拟。求出系统的两个简正模和一般振动解。并做出摆的位移曲线，分析振幅调制现象。(Connect coupling on spring pendulum simulation. Obtained system of two normal vibration mode and the general solution. And make a pendulum displacement curve, analysis of the phenomenon of amplitude modulation.)

matlab访问串口的程序，包括：打开、关闭和清除串口对象；读串口、写串口；串口的数据流控制；还包括：怎么用matlab发送手机短信的例程；这是学习matlab访问系统硬件的原理，不可多得的经典例程！(matlab serial port access procedures, including: open, close and clear the serial port object read serial port and write serial port serial data flow control also include: how to send SMS using matlab routine it is to learn the principle of the hardware to access the system matlab , rare classic routines!)

在瑞丽衰减下不同SNR产生的误码率，在加性高斯白噪声下仿真传输过程，并且和理论值对比。(BER SIMO 2BY2)

用matlab自带的Gatool实现的tsp计算问题，有测试用例与图形化界面。(That comes with matlab tsp Gatool achieve computational problems, there are test cases and graphical interface.)

tdma解三对角矩阵，是一个M文件，用在matlab中，编写完整(tdma solution of tridiagonal matrix is ​ ​ a M-file, used in matlab, the preparation of a complete)

使用迭代算法对运动目标进行分割，阈值可以自适应调节(Using an iterative algorithm for moving target segmentation threshold can adaptively adjust)

某火箭在空中沿直线做匀加速飞行，加速度为 ，发动机推力的波动一定会引起加速度波动，雷达以间隔时间不断测量该火箭距离远点的距离 ，由于雷达的测量噪声使得火箭距离测量值 中含有噪声。现在欲通过雷达对火箭距离的测量数据求得火箭的真实距离、速度和加速度。(A linear constant acceleration rocket flight in the air along the acceleration, the engine thrust fluctuation will cause the fluctuation of acceleration time interval measurement, radar to constantly the rocket from the far point of the distance, because the noise radar makes the rocket range measurements with noise. Now, the real distance, velocity and acceleration of the rocket are obtained by measuring the distance of the rocket by radar.)

说明：  数字信号处理中的fft算法，非自带程序，各种窗函数的编写。(Fft digital signal processing algorithms, non-native program, the preparation of a variety of window function.)

电力系统分析中Ybus矩阵的去奇异变换法实现算法。该程序可以实现考虑线路分支和无线路分支的情况。(In general the power system has mutual branches and it becomes difficult to form the y bus using the inspection method, so one is to go for singular transformation method.)

主要介绍基于dct的数字音频水印，以及水印的嵌入和水印的提取(Introduced digital audio watermarking based on dct, and the watermark embedding and watermark extraction)