fica4

说明：  ldpc码的基于联合校验—变量处理修正译码算法基础上的改进(the improvement of LDPC code decoding algorithm )

本设计主要对4PSK调制方式的信号，利用MATLAB的m文件进行最佳接收机的设计与仿真。对输入的叠加噪声的4PSK调制信号进行接收，利用相关解调器来实现信号解调，及最大似然准则来实现检测器。在相关解调器中，接收信号分别与基函数 和 相乘再积分。在检测器中，利用相位来判断输出，从而最终得到接收的数据。采用随机二进制数通过4PSK调制后叠加高斯白噪声再对设计的接收机进行测试，从测试的结果可看出，在信噪比大于-8dB时，误码率为0，说明该接收机较好的实现了抗噪声性能。(The design of the main 4PSK modulation mode of the signal, the use of MATLAB m file for the best receiver design and simulation. The 4PSK modulated signal of the input superimposed noise is received, and the demodulator is realized by the relevant demodulator, and the maximum likelihood criterion is used to realize the detector. In the associated demodulator, the received signal is multiplied by the basis function and multiplied by the basis function. In the detector, the output is judged by the phase, and finally the received data is obtained. Using the random binary number through 4PSK modulation after the superposition of white noise and then the design of the receiver to test the test results can be seen in the signal to noise ratio greater than-8dB, the bit error rate is 0, indicating that the receiver is better The realization of the anti-noise performance.)

Matlab教训，PPT格式，从入门到精通。(Matlab lessons, PPT format, from entry to the master.)

这是一个用来进行小波分析的工具包，他是美国斯坦福大学的一些人编的，对于做图像的人非常有用。(This is a tool used for wavelet analysis package, he is a Stanford University compiled a number of people, for people who make images very useful.)

此程序主要演示通道间相位误差对DBF旁瓣电平的影响。(This program is mainly to demonstrate of effect of channel phase errors on the sidelobes of DBF.)

gabor filter,gaborFeatures.m gaborFilterBank.m

线性系统作业，系统辨识，运用极点配置，LQR，H∞设计状态反馈控制器(Linear system operation, system identification, using pole placement, LQR, H ∞ state feedback controller design)

说明：  EM 算法是Dempster，Laind，Rubin于1977年提出的求参数极大似然估计的一种方法，它可以从非完整数据集中对参数进行 MLE估计，是一种非常简单实用的学习算法。这种方法可以广泛地应用于处理缺损数据、截尾数据以及带有噪声等所谓的不完全数据，可以具体来说，我们可以利用EM算法来填充样本中的缺失数据、发现隐藏变量的值、估计HMM中的参数、估计有限混合分布中的参数以及可以进行无监督聚类等等。(EM algorithm is a method for maximum likelihood estimation of parameters proposed by Dempster, Laind and Rubin in 1977. It can estimate parameters from incomplete data sets by MLE. It is a very simple and practical learning algorithm. This method can be widely used in dealing with the so-called incomplete data such as defective data, censored data and noisy data. Specifically, we can use EM algorithm to fill missing data in samples, find hidden variable values, estimate parameters in HMM, estimate parameters in finite mixed distribution, and so on. Unsupervised clustering and so on.)

说明：  MATLAB 算法排序 矩阵生成 方程组的解法(Sort MATLAB algorithm generates Equation Group Matrix)

说明：  系统响应 出现六种不同的图案 非常简单易懂(system program)