matlab-chepia-tiju

用simulink构建模型，解非线性达芬方程 (Nonlinear Duffen equation with simulink)

对一帧图像进行信噪比等因素的检测，比较实用(Image on a detection signal to noise ratio and other factors, more practical)

m序列发生器，可以产生63位m序列，可以产生63位m序列，(m sequence generator, can produce 63 m sequence, can produce 63 m sequence,)

大学数学实验-清华出版社-姜启源-第4章例题源代码 (Mathematics Experiment-Tsinghua University- Chapter 4 Example)

K最邻近密度估计技术是一种分类方法，不是聚类方法。 不是最优方法，实践中比较流行。 通俗但不一定易懂的规则是： 1.计算待分类数据和不同类中每一个数据的距离（欧氏或马氏）。 2.选出最小的前K数据个距离，这里用到选择排序法。 3.对比这前K个距离，找出K个数据中包含最多的是那个类的数据，即为待分类数据所在的类。(K nearest neighbor density estimation is a classification method, not a clustering method. It is not the best method, but it is popular in practice. Popular but not necessarily understandable rule is: 1. calculate the distance between the data to be classified and the data in each other (Euclidean or Markov). 2. select the minimum distance from the previous K data, where the choice sorting method is used. 3. compare the previous K distances to find out which K data contains the most data of that class, that is, the class to which the data to be classified is located.)

从X光片中提取出骨头影响，并对其区域进行标注。(X-ray film extracted from the bones of the impact, and its region mark.)

说明：  多输入多输出OFDM多用户检测仿真程序（MATLAB编写）(Multiple-input multiple-output OFDM multi-user detection simulation program)

matlab stk链接函数库。介绍了链接的各种函数以及其用法(The connextion functions of matlab and stk. It include all the functions that can be used in development of stk with matlab。)

MATLAB HELP FUNDENMENTAL IN YOUR CODE 2 IN FILE

fp=0.2KHz,Rp=1dB, fs=0.3KHz,As=25dB,T=1ms；用脉冲响应不变法设计一Butterworth数字低通滤波器，观察所设计数字滤波器的幅频特性曲线，记录带宽和衰减量，检查是否满足要求。(fp=0.2KHz,Rp=1dB, fs=0.3KHz,As=25dB,T=1ms；The same method to design a digital low-pass Butterworth filter, observe the design of digital filter frequency characteristic curve, recording the amount of bandwidth and attenuation, check with the impulse response meets the requirements.)