DANYIN

本代码设计的切比雪夫1型滤波器，与MATLAB中的切比雪夫滤波器不同的是输出为未归一化的零极点，输入只要是通带频率，通带波动，截止频率，阻带衰减即可，更便于抄做(The code design of Chebyshev Type 1 filter, and MATLAB in the Chebyshev filter output is not different is that the poles and zeros of the normalized input as long as the pass-band frequency, pass-band fluctuations, cutoff frequency, stopband attenuation can be more easily copied to do)

使用matlab进行EGM96数据进行地球重力场的拟合，可以得到地球上任一点的重力异常，高程异常，垂线偏差等。(application of data of EGM96 to get anormality of gravitation and height and other indexes)

关于数学建模公选课，每一讲都很仔细，也有例题。(On Mathematical Modeling Course, each speaking very carefully, there are also examples.)

Here we prove that as the tier number and path loss factor increases ,The SIR (Signal to Interference Ratio) also increases! Consider a cellular system with hexagonal cells & cluster size N.

汉明码，信息论与编码，74系列 的 故意结果iu(hanming just it ahya hah)

matlab程序，用于人脸识别的K均值算法程序，非常有用。(matlab program for K-means algorithm for face recognition program, very useful.)

说明：  应用于多峰值MPPT问题，采用PSO寻找最大功率点，具体实现在S-function中，仿真时建议找一个内存大的电脑用连续仿真，离散在这种仿真时容易出问题。自行读程序只需输入光伏电压电流即可实现，仿真多峰值问题时光伏板注意反并联二极管，输出为占空比，boost、隔离boost都可以使用(For multi-peak MPPT problem, PSO is used to find the maximum power point, which is realized in S-function. It is suggested that a computer with large memory be used for continuous simulation. Discrete simulation is prone to problems. The self-reading program can be realized only by inputting photovoltaic voltage and current. In the simulation of multi-peak problem, the photovoltaic board pays attention to the anti-parallel diode.)

这是模式识别中模板匹配内容的Matlab例程，其中edit_distance程序用来计算两个符号字符串间的编辑距离； back-tracking程序是“回溯”法画出最佳路径的代价网格； Dtw-Sakoe.m程序是具有Sakoe-Chiba局部路径约束的动态时间弯 折。(This is a pattern recognition template matching the content of Matlab routines, which edit_distance procedures used to calculate the two symbols of the edit distance between strings back-tracking program is " back" method to draw the best path cost grid Dtw- Sakoe.m program is a Sakoe-Chiba local path constraint of the dynamic time warping.)

This file contains the e-book of Radar systems analysis using matlab

problem solving c++是一本很好的c++入门教科书，入门必备。可能不是非常主流，但是很推荐。(problem solving c++ c++ is a good introductory textbook, entry required. May not be very mainstream, but it is recommended.)