bldcm

城市轨道交通客流需求预测模型，非集计思路(Urban rail transport passenger demand forecasting model, non-collection design ideas)

希尔伯特黄变换matlab小程序，一种适用于分析非平稳非线性信号的时频分析方法。(Hilbert-Huang Transform matlab code. It applies to seismic data.)

卷积码的仿真，其误码率实验值与理论值比较，调用函数，可以方便在以后的算法应用。(Simulation of a convolutional code, bit error rate value is compared with the theoretical value experiment, the calling function, the algorithm can be easily applied in the future.)

由于卫星与用户接收机二者的连线方向上存在相对运动，因此引起了载波和伪码的多普勒效应，再加上接收机晶体震荡频率漂移和卫星时钟频漂等原因。接收机实际接收到的卫星载波中心频率一般不再等于信号被发射时的标称频率，这就需要接收机在载波频率一维对信号进行搜索。同时，由于卫星到接收机的距离时刻变化，加上接收机始终相对于GPS时间的偏差又并不固定，因而接收信号的伪码相位值也在改变，所以接收机也要在码相位一维对信号进行搜索。扩频信号的捕获是一个对目标信号频率域和相位域进行的二维搜索过程。(Because of the relative motion between the two of the satellite and the user receiver, the Doppler effect of the carrier and pseudo-code is caused, and the frequency drift of the oscillation of the receiver crystal and the frequency drift of the satellite clock are added. The frequency of the satellite carrier center that the receiver actually receives is generally no longer equal to the nominal frequency of the signal being transmitted, which requires the receiver to search the signal in one dimension of the carrier frequency. At the same time, because the distance between the satellite to the receiver is changed, the deviation of the receiver always relative to the GPS time is not fixed, so the pseudo code phase value of the received signal is also changing, so the receiver also searches for the signal in the code phase. The acquisition of spread spectrum signal is a two-dimensional search process for the frequency domain and phase domain of the target signal)

信号处理的码件间干扰的解决问题方法,用盲均衡方法解决问题(Signal processing code pieces to solve the problem of intersymbol interference method, the solution to the problem of blind equalization)

说明：  最小费用最大流问题 MATLAB编程代码(Maximum flow problem minimum cost MATLAB programming code)

matlab 多径信道 多径信道的仿真 (matlab multipath)

motor simln in matlab with reference to pmsm motor diagrams eqns and theory for better view

脑电信号预处理中使用自适应滤波器的原理对脑电信号中的心电信号进行滤除，通过对比观察就会发现自适应滤波器的原理的效果的优势(EEG using adaptive pre-filter theory of the EEG in the ECG filter, you will find by comparing the observed effect of the principle of adaptive filter advantages)

平坦衰落信道的MATLAB仿真（有多普勒频移） (Flat fading channels MATLAB simulation (with Doppler shift))