OP_HM

美国国家航空和宇宙航空局(NASA)研制的跟踪和数据中继卫星系统(TDRSS)的正交信号发生器使用的是阶数为r=11的GOLD序列，序列长为2047，m序列优选对为4445和4005，利用Matlab程序构造出这个序列，并且验证信号的平衡标准，PACF(离散周期自相关函数)和PCCF(离散周期互相关函数)。通过Matlab2009A测试。(NASA developed tracking and data relay satellite system (TDRSS) use of orthogonal signal generator is the order of the GOLD for the r = 11 sequence of length 2047, m sequence pairs for the 4445 and 4005, use of Matlab program to construct the sequence, and verify the balance of the signal standard, PACF and PCCF. Testing by Matlab2009A.)

ldpc的解码程序,matlab实现，已实现，译码速度快(ldpc decoding process, matlab implementation, has achieved fast decoding)

多项式线性拟合，根据给出的（x，y）值，给出多项式的系数值。(Presented in this paper, according to polynomial linear fitting (x, y) value of polynomial coefficient values. )

基于matlab的GUI曲柄摇杆机构的运动仿真的源程序。结果是运动的界面，输入参数可以求出摇杆机构的加速度，角加速度，极位夹角，行程速比系数等。(GUI crank rocker mechanism movement simulation based on matlab source program. Result is movement of the interface, input parameters can be calculated rocker mechanism of acceleration, angular acceleration, ultimate position Angle and travel speed ratio coefficient, etc.)

先进PID控制matlab仿真源代码，典型实例具体说明，清晰易懂。（第二章）(Advanced PID control matlab simulation source code, more typical examples of specific instructions, clear and easy to understand.（Chapter 2）)

Add noise to signal at a prescribed SNR level.

nsga2算法实例，用于多目标优化,基于pareto排序以及共享函数的多目标遗传算法(An example of NSGA2 algorithm, for multi objective optimization)

说明：  dbscan聚类算法在matlab上的实现(Implementation of DBSCAN cluster in MATLAB)

采用U函数余项式反演三维密度界面，其布格重力异常采用Parker法计算(U-function density of more than three-dimensional inversion-type interface, the Bouguer gravity anomaly calculated using Parker)

一个50行的简短Matlab有限元程序，求解三维线弹性问题。执行fem3d.m即可。(A brief 50-line Matlab finite element program for solving three-dimensional linear elastic problem. Executive fem3d.m .)