di9zhang

说明：  从方程组中消去一些未知函数及其各阶导数，得到只含有一个未知函数的高阶常系数线性微分方程(Eliminated from the equations of some unknown function and its first derivative, the only unknown function contains a higher-order linear differential equations with constant coefficients)

说明：  《MATLAB 7.0从入门到精通》一书的配套程序——第6章的程序。(&quot MATLAB 7.0 from the entry to the master,&quot a book supporting the process- the procedures in Chapter 6.)

调制识别的传统算法， 零中心归一化瞬时幅度的谱密度的最大值 零中心归一化瞬时幅度绝对值得标准偏差 零中心非弱信号段瞬时相位非线性分量绝对值的标准偏差 零中心非弱信号段瞬时相位非线性分量的标准偏差 零中心归一化非弱信号段瞬时频率绝对值得标准偏差(Traditional modulation recognition algorithm, the zero center owned by an instantaneous amplitude of the spectral density of the maximum zero center owned by one of the instantaneous amplitude is definitely worth the nonlinear component of the instantaneous phase of the absolute value of standard deviation of zero-center non-weak signal segment, standard deviation of zero center weak signal segment of the standard deviation of the nonlinear component of the instantaneous phase zero center owned by the instantaneous frequency of a non-weak signal segment is definitely worth the standard deviation)

说明：  EM算法的matlab实现,经过测试可以运行(EM in matlab)

本文章描述四自由度机械臂的matlab仿真方法，使用到robot工具箱(This article describes the four degrees of freedom manipulator matlab simulation method using the robot kit)

一个关于基站发射功率多径衰落，阴影衰落以及多普勒频移等的matlab仿真(A base station transmit power multipath fading, shadow fading and Doppler frequency shift matlab simulation)

说明：  多目标粒子群优化，三个目标函数，帕累托非支配解集(Multi objective particle swarm optimization, three objective functions)

是通信类的MATLABA仿真抗正弦噪声干扰能力(communications category MATLABA simulation-sinusoidal noise interference)

惯性导航系统中，惯导解算过程中组合导航算法(Inertial navigation systems, inertial navigation solution integrated navigation algorithm)

Poincare code for detect the area of object. this the new work.