PCA-K_means

请用多层感知器（MLP）神经网络误差反向传播（BP）算法实现异或问题（输入为，要求可以判别输出为0或1），并画出学习曲线。其中，非线性函数采用S型Logistic函数。(Please use the Multilayer Perceptron (MLP) back propagation neural network (BP) algorithm XOR problem (input is required to determine the output is 0 or 1), and draw the learning curve. Among them, the non-linear function using S-type Logistic functions. )

matlab中利用互相关算法来计算两信号波形的时延差(To calculate the difference between two signal waveform delay using cross-correlation algorithm based on matlab)

说明：  此文件包括蒙特卡罗方法的基本思想及应用，有很多MATLAB实例，是学习蒙特卡罗方法的很好资料。没有解压密码(this document, including the Monte Carlo method and the application of the basic idea, there are many examples of MATLAB study is a good method of Monte Carlo data. No extracting passwords)

winner2信道，多输入多输出无线通信的信道模型仿真(winner2 channel, multi-input multi-output wireless communication channel model simulation)

合成地震记录是用声波测井或垂直地震剖面资料经过人工合成转换成的地震记录（地震道） 合成记录的制作是一个简化的一维正演的过程，合成记录F(t)是地震子波S(t)与反射系数R(t)褶积的结果。(Synthetic seismogram is sonic or vertical seismic profile data after conversion into synthetic seismograms (seismic trace) the production of synthetic seismogram is a simplified one-dimensional forward modeling process, synthetic seismogram F (t) is the seismic wavelet S (t) and the reflection coefficient R (t) the convolution results.)

平方根升余弦滚降数字滤波器的设计与实现.pdf(Design and implementation of square-root raised cosine roll off digital filter)

用来求解指派问题的匈牙利算法，比目前网上流传的运行效果都好。(Hungary algorithm)

张小飞(南京航空航天大学） 阵列自适应信号处理的部分代码，包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法 等(Xiaofei (Nanjing University of Aeronautics) adaptive array signal processing part of the code, including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm)

用MATLAB来产生C/A码的代码，很好用的(uesed to generate C/A code )

输入相关参数，便可求得函数的二阶累积量，使得复杂计算过程得到避免(Input parameters, the function of the second order cumulant can be obtained, making complicated calculation is avoided )