DSPmatlab

genetic fuzzy (ga_fuzzy) pid gain optimal

利用Matlab仿真软件，完成如图1所示的一个基本的数字通信系统。信号源产生0、1等概分布的随机信号，映射到16QAM的星座图上，同时一路信号已经被分成了实部和虚部，后边的处理建立在这两路信号的基础上。实部、虚部信号分别经过平方根升余弦滤波器，再加入高斯白噪声，然后通过匹配滤波器（平方根升余弦滤波器）。最后经过采样，判决，得到0、1信号，同原信号进行比较，给出16QAM数字系统的误码。(Using Matlab simulation software, as shown in Figure 1 to complete a basic digital communications systems. Signal source such as arise over the distribution of 0,1 random signal, is mapped to 16QAM constellation diagram, at the same time all the way the signal has been divided into real and imaginary parts, behind the deal with the establishment of these two signals in the basis. Real part, imaginary part of the signal, respectively, after a square root raised cosine filter, then add white Gaussian noise, and then through the matched filter (square root raised cosine filter). Finally, after sampling, the verdict has been 0,1 signal, to compare with the original signal is given 16QAM digital system error.)

利用最小二乘迭代方法计算用户位置的matlab程序。(This is a least-squarels program writing with matab tool!)

半监督学习(Semi-Supervised Learning，SSL)是模式识别和机器学习领域研究的重点问题，是监督学习与无监督学习相结合的一种学习方法。半监督学习使用大量的未标记数据，以及同时使用标记数据，来进行模式识别工作。当使用半监督学习时，将会要求尽量少的人员来从事工作，同时，又能够带来比较高的准确性，因此，半监督学习目前正越来越受到人们的重视。(Semi-Supervised Learning (SSL) is a key issue in the field of pattern recognition and machine learning. It is a learning method combining supervised learning with unsupervised learning. Semi-supervised learning uses a large number of unlabeled data, as well as labeled data, for pattern recognition. When using semi-supervised learning, it will require as few people as possible to work, and at the same time, it can bring relatively high accuracy. Therefore, semi-supervised learning is receiving more and more attention.)

说明：  一种利用MATLAB实现的射线追踪算法，估计各种无线系统参数。(# Ray Tracing A ray tracing algorithm implemented using MATLAB that estimates various wireless system parameters.)

《 MATLAB 程式设计与应用》，网络WEB版本，包含了很多MATLAB的相关示例与代码。(" MATLAB programming and applications" , Internet WEB version of MATLAB contains a number of relevant examples and code.)

PSO算法的系统辨识，辨识一个锅炉蒸汽水位的传递函数。依据现有的数据，将传递函数辨识为2阶。(PSO algorithm to identify a boiler steam water level transfer function. Based on the existing data, the transfer function is identified as order 2.)

2D Histrogram Two Dimention Histogram function

DIGITAL IMAGE WATER MARKING USING DCT

对于初学者具有参考意义，相控阵天线的方向图（切比雪夫加权），包含位置式PID算法、积分分离式PID，实现了对10个数字音的识别程序利用matlab GUI实现的串口编程例子，验证可用。(For beginners with a reference value, Phased array antenna pattern (Chebyshev weights), It contains positional PID algorithm, integral separate PID, Realization of 10 digital audio recognition program Use serial programming examples matlab GUI implementation, Verification is available.)