sanxiang-jiaoliutiaoya

雷达经典的书，基础知识讲的很清楚，当时上课的时候用的书(Radar classic book, the basics of speaking very clearly, the class was a book )

Variational level set method

input: fun x(t) t min & t max a df T = t_max-t_min fs = a*1/T 输入1：方程，xt；输入2，3：信号起始时间；输入4：选取的采样周期是信号长度倒数的倍数， 默认为50；输入5：频域分辨率，默认为0.3 输出频域信号和频域范围 为了提高fft的速度，频域信号长度是2的次方( Input: fun x (t) t min & t max a df T = t_max-t_min fs = a* 1/T Input 1: Equation XT input 2,3: signal start time input 4: select the sampling period is the reciprocal multiples of the signal length, default is 50 input 5: frequency domain resolution, default is 0.3 of the output frequency domain signal and the frequency domain in order to improve the speed of the FFT, the frequency domain signal length is a power of 2)

说明：  在matlab或者PSCAD中对桥差不平衡电流进行仿真计算，得到仿真结果与常规计算结果一致，此方法修改简单快捷。(In matlab or PSCAD to bridge the difference between the current imbalance in the simulation calculation, the simulation results are consistent with conventional calculations, this method is simple and quick modification.)

基于极限学习机和BP神经网络的半监督分类算法(Semi supervised classification algorithm based on extreme learning machine and BP neural network)

说明：  十分经典的人工势场法，该算法能够解决机器人路径规划问题(Artificial potential field method)

Question 1.1 Sullivan

This code is about designing of synthetics seismic data.

对浮点型数据进行压缩，将数据分为3个部分：符号位、指数、尾数，分别对其进行压缩(Of floating-point type data compression, data is divided into three parts: sign bit, index, mantissa, respectively, to compress their)

基于MATLAB的升降压斩波电路的仿真，可以调节负载和占空比来观察波形的变化(Based on MATLAB buck chopper circuit simulation, you can adjust the load and duty to observe the waveform changes)