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em算法matlab代码。解压缩后直接可以在matlab环境下运行(em algorithm Matlab code. Decompress directly in the operating environment Matlab)

用FDTD进行电磁仿真的matlab案例，含1D、2D、3D(Using FDTD to carry out the electromagnetic simulation of the MATLAB case with 1D, 2D, 3D)

这里面包含了多个IEEE多普勒频移估计论文，都是比较经典的算法，对于研究多普勒频移估计的学者很有帮助(It contains a number of IEEE papers estimate the Doppler shift, are more classical algorithm, the study estimated Doppler shift scholar helpful)

BP神经网络等多种算法预测高铁站客运量，程序下载可直接运行。(BP neural network and other algorithms predict high-speed rail station passenger volume, program downloading can be directly run.)

说明：  程序为了设置自定义的天线阵列模式，仿真了各种阵列形式的性能(Procedures in order to set up a custom antenna array model, simulation of various forms of performance arrays)

to help new student how to use matlab

ami ，hdb3码的编解码过程，这是在matlab中实现的，但是对我们的编程也很有用处(ami, hdb3 code encoding and decoding process, which is implemented in matlab, but may also be useful to our programming)

请用多层感知器（MLP）神经网络误差反向传播（BP）算法实现异或问题（输入为，要求可以判别输出为0或1），并画出学习曲线。其中，非线性函数采用S型Logistic函数。(Please use the Multilayer Perceptron (MLP) back propagation neural network (BP) algorithm XOR problem (input is required to determine the output is 0 or 1), and draw the learning curve. Among them, the non-linear function using S-type Logistic functions. )

粒子群算法的matlab实现，由主函数swarm和6个辅助函数：fitness（适应度函数）、congstrict(约束函数)、getNeighborIndex、getNeighborIndexVector、getNeighborIndexWithBestFitness、randint组成。其中fitness由使用者自行编写。(SO algorithm matlab realize, from the main function of swarm and six auxiliary functions: fitness (fitness function Number), congstrict (constraint function), getNeighborIndex, getNeighborIndexVector, getNeighborIndexWithBestFitness, randint composition. Compiled by the user which fitnessTo write.)

对回波信号进行傅里叶变化,进而提取出距离信息(Performing Fourier transform on echo signals to extract distance information)