power_hvdc18pulse

用c语言实现下列的数字信号处理算法 1．离散傅里叶级数合成连续周期信号 2．DIF FFT 测试程序 3．将输入数据的幅度画出图形 4．使用FFT实现快速卷积 5．使用FFT实现快速相关 6．取样混迭演示程序 (language used to achieve the following digital signal processing algorithms 1. Discrete Fourier series synthetic signal two consecutive cycles. DIF FFT three test procedures. The input data rate of 4 paint graphics. Use FFT fast convolution 5. Use FFT fast correlation 6. Aliasing sampling Demonstration Program)

This code use a Particle swarm optimization algorithm. and then optimize the learning rates of neural network. used is JENKIN s gasro and makey dataset.

通过高斯函数导数检测图像边缘，实质是方向可调小波变换检测图像边缘。(Derivative to detect image edges by Gaussian function, in essence, the steerable wavelet transform to detect image edges.)

一个应用psk调制的通信系统matlab仿真，应用matlab中的图形操作界面simulink，psk是现在应用最广的调制方式，有很大的参考价值(An application psk modulation matlab communication system simulation, application of the graphical interface matlab simulink, psk is now the most widely used modulation, have great reference value)

Simulink通信系统建模一书中的DS_CDMA仿真MATLAB源程序，包括word文档介绍，是非常好的通信系统仿真的学习参考资料(The book Communication Systems Simulink model simulation of DS_CDMA MATLAB source, including word document describes, is a very good communication system simulation study reference)

用于MIMO检测的sphere decoder程序( This function implements a soft output sphere decoder. Based on the paper: C. Studer, M. Wenk, A. Burg, and H. Blocskei: "Soft-Output Sphere Decoding: Performance and Implementation Aspects", Asilomar 2006 R ... is an upper triangular matrix obtained from the QR decomposition of the MIMO channel H s ... received symbol (column) vector, s=Q^H*y dist_ZF ... Distance for the zero forcing solution symbols_ZF ... ZF solution M ... number of bits encoded in every layer [1 x nTA] symbol_alphabet ... for the demapping [nTA x 2^max(M)], filled with zeros for smaller symbol alphabets bittable ... matrix containing the bits according to the symbol_alphabet [sum(M) x 2^max(M)])

最大似然估计分类算法的matlab实现，可以对需要分类的数据进行最大似然分类。(Classify using the maximum-likelyhood algorithm.Outputs is the Decision sufrace.)

channel equalisation using anfis

ofdm发送端和接收端，根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。(ofdm sending end and receiving end, according to the characteristics of the short training word correlation operation, the signal reaching the detector, when the detected correlation value is greater than the threshold after a certain number of times that a signal arrives.)

This code performs likelihood ratio test (LRT) for VAR model to determine optimal lag length, constant term is automatically included. Test is performed on contiguous lags, thus DOF=neqn^2*1. Guido Travaglini, 06.15.2011