ID_ssi

里查得森(Richardson)法解偏微分方程的程序。解的是定步长的抛物型偏微分方程： du/dx - a * d2u/dx2 = 0 在程序中可以更改 a 的值以实现不同系数的解。由于它是一种显式格式，解的结果不稳定 在Matlab7下面运行发现竟然有一些值达到十的几十次方,这是算法本身决定的。不是程序有错误(Richard Anderson (Richardson) Solving partial differential equations procedures. Solution is scheduled to step parabolic partial differential equation: du/dx- a* d2u/dx2 = 0 in the procedure can be changed in order to realize the value of a different coefficient of the solution. Because it is an explicit format, the result of instability in the solution of the following Matlab7 running even found some value reached ten dozens of parties, this is the decision algorithm itself. Not a procedural error)

二值图像游程编码算法的Matlab实现,包含源程序代码以及运行结果。(Binary image run-length coding algorithm for the realization of Matlab, including source code, as well as the results.)

M序列产生函数 0、1概率圆图产生函数 M序列自相关函数(M-sequence generator function 0,1 probability circle diagram produces the autocorrelation function of the sequence of function M)

Program to find drill tool temperature

采用backfolding差分算法，去除相邻点间的噪声干扰(Difference algorithm to remove the noise between adjacent points.)

ofdm的matlab仿真程序，对学习ofdm技术的人员来说比较实用(ofdm matlab simulation program, to learn ofdm technology officer for more practical)

利用MATLAB实现对频率调制信号时域和频域的仿真，采样点为10240。(Frequency modulation signal)

用MATLAB程序实现卫星位置解算、用户位置解算（最小二乘法）、导航电文读取、坐标转换。(MATLAB program to achieve the satellite position solver, solver user location, navigation message reads, GPS positioning simulation (implemented by the least squares method).)

实现了图像识别的matlab程序，可以直接使用，里面有例子，适合新手学习(To achieve the image recognition matlab program can be used directly, which there are examples, suitable for novice to learn)

说明：  matlab中微分方程的解法，及其应该注意的问题(matlab in the solution of differential equations, and should pay attention to the issue of)