Programs

说明：  实现了pcm调制的全过程的MATLAB仿真，包括调制、A率压缩、量化、解扩、解调、信号恢复。(Modulation achieved pcm MATLAB simulation of the whole process, including the modulation, A rate of compression, quantization, despreading, demodulation and signal recovery.)

This topic presents a current blocking strategy of brushless DC (BLDC) motor drive to prolong the capacity voltage of batteries per charge in electric vehicle applications. The BLDC motor employs a simple torque hysteresis control (THC) that can offer a robust control and quick torque dynamic performance. At first, a mathematical modeling of BLDC motor and principle of torque hysteresis control will be described, so that the benefit offered by the proposed current blocking strategy can be highlighted. It can be shown that the current control method naturally provides current limitation, in which the current error (or ripple) is restricted within the pre-defined band-gap furthermore provide current protection. The benefit of proposed current blocking strategy will be highlighted such that it can prevent the current drained from the batteries when the torque demand is released to set to 0 Nm. The control scheme is validated and verified by the simulation and experimental results.

说明：  文件包含了层次分析法、熵权法和TOPSIS方法计算参数时用到的函数(The file contains the functions used in the calculation of parameters by analytic hierarchy process (AHP), entropy weight method and TOPSIS method)

本文件夹中包含了多种回归算法，用matlab编写(This folder contains a variety of regression algorithm using matlab to prepare)

用MATLAB对单载波频域均衡进行仿真，并绘制出误码率仿真的结果。(Using MATLAB on a single carrier frequency domain equalization simulation, and to map out the bit error rate simulation results.)

同号点电荷电场的研究的MATLBA程序。有详细说明和解释(Point charge)

Modeling crack growth in a traditional finite element framework is a challenging engineering task. Originally the finite element framework was modified to accommodate the discontinuities that are caused by phenomena such as cracks, inclusions and voids. The finite element framework is not well suited for modeling crack growth because the domain of interest is defined by the mesh. At each increment of crack growth, at least the domain surrounding the crack tip must be remeshed such that the updated crack geometry is accurately represented.

模式分类的matlab程序，十二五规划模式识别导论教材答案( Pattern classification matlab procedures, Twelfth Five Year Plan Introduction textbook answer pattern recognition)

這是一個讓原始音訊可以再不改變音訊長度下，改變pitch的程式，因為如果音訊用resample，雖然可改變其音訊頻率音高，但是卻會有拉長音訊的副作用，因此設計了一個可以改善其缺點的小方法(實做paper ）(This is an original audio so that you can no longer change the audio down the length of the program to change the pitch because if the audio with resample, although it can change the pitch of the audio frequency, but the audio will be stretched side effects, and thus can improve the design of a small way shortcomings (real do paper))

路径跟踪中心轨迹法，是一种求解最优潮流的有效方法，大大简化了原有算法的复杂性(Path Tracking Center locus method is an effective method for solving the optimal power flow, greatly simplifies the complexity of the original algorithm)