zhuchengfen

用matlab仿真的八路时分复用系统，包括变速复接巴克码解复(Matlab simulation with eight-way time-division multiplexing system, including the Barker code transmission multiplexing demultiplexing)

Simulink建模与仿真。包含一本关于Simulink建模仿真的书，以及一个很好的课件。(Simulink modeling and simulation. Contains a book on the Simulink modeling and simulation, as well as a good courseware.)

irisData is 150x5. row: Sepal.Length Sepal.Width Petal.Length Petal.Width Group(1,2,or 3) the first 50x5 is Isis-setosa(1), the second 50x5 is Isis-versicolor(2), the last 50x5 is Isis-virginica(3). !!! Caution !!! X(50 + 21, :) equals X(50 + 50 + 27, :), but Y(50 + 50 + 21) DOESNOT equal Y(50 + 50 + 27)! So the algorithm will NEVER be 100 correct.

提供一个仅通过平面上的三点画出一个圆形的小程序，仅供大家探讨(draw a circle with 3 points)

用MATLAB编写的svm源程序，可以实现支持向量机，用于特征分类或提取(MATLAB svm prepared by the source, can achieve a support vector machine for the feature classification or extract)

此算法是基于PN序列的经典的定时同步算法，能直接出图，望对大家有用(This algorithm is based on the classic PN sequence timing synchronization algorithms, directly out of maps, useful look on the U.S.)

最经典AdaBoost实现，适合初学，有大量详细的注释，容易理解(This a classic AdaBoost implementation, in one single file with easy understandable code. The function consist of two parts a simple weak classifier and a boosting part: The weak classifier tries to find the best threshold in one of the data dimensions to separate the data into two classes-1 and 1 The boosting part calls the classifier iteratively, after every classification step it changes the weights of miss-classified examples. This creates a cascade of "weak classifiers" which behaves like a "strong classifier" 。)

对于bpsk直扩系统的误码仿真，直扩系统对于功率、频偏、相偏的鲁棒性。(For bpsk DSSS BER simulation systems, direct expansion systems for power, frequency offset, phase offset robustness. .)

利用双线性变换法设计Chebyshev高通滤波器，体会其性质和特点。(Bilinear transform Chebyshev high-pass filter design, understand the nature and characteristics.)

线性调频信号是一种雷达常用的电磁波信号，当雷达信号检测到目标时候，反射后得到雷达回波信号，此时由于多普勒效应，信号的频率发生偏移，这个源码仿真出雷达检测到目标加速度信息的回波信号。(LFM signal is a commonly used electromagnetic radar signal, when the radar signal detection to the target time, after reflection of radar echo signal, at this time due to Doppler effect, the signal)