harmonics-matlab-program

数字信号处理2matlab误差性能分析 数字信号处理2matlab误差性能分析(error performance analyze surface)

Particle swarm optimization is a derivative-free global optimum search algorithm based on the collective intelligence of a large group of intercommunicating entities. The individual particles are simple and primitive, knowing only their own current locations and fitness values, their personal best locations, and the swarm s best location. Each particle continually adjusts its trajectory based this information, moving towards the global optimum with each iteration. The swarm as a whole displays a remarkable level of coherence and coordination despite the simplicity of its individual particles. The coordinated behavior of the swarm has been compared with that of a flock of birds or a school of fish.

在matlab，传统的边缘检测直接调用edge函数，但是得到的边缘信息较稀薄，可以通过将sobel,roberts,prewitt三种算子的边缘检测叠加起来，并且对于连续的边缘部分拓宽，使得边缘更连贯清晰(In matlab, traditional edge detection edge direct call function, but thinner than the edge information can be obtained by sobel, roberts, prewitt three edge detection operator stack up, and for widening the continuous edge portion, so that the edge is more consistent clear)

采用复小波变换提取小波脊线，可较好识别频率(Using complex Wavelet transform Wavelet Ridge can better identify the frequency)

目前公认最好的神经网络工具箱，学习性能非常好，是机器学习及人工智能，自动控制，拟合，回归预测的好工具(Currently accepted best neural network toolbox, learning performance was very good machine learning and artificial intelligence, automatic control, fit, return a good tool for forecasting)

Low rank revealing matrix QR decomposition method

function calculates matrices of scores and loadings using NIPALS algorithm (Nonlinear Iterative Partial Least Squares)

说明：  采用频率调制 为1000Ｈｚ的载波，在解调前把加性白高斯噪声加入到调制信号。当噪声功率和调制信号功率比为０.００１，０.０１，０.０５，０.１和０.３是进行解调并绘出调制信号(The use of frequency modulation for the 1000Hz carrier, in the demodulation before AWGN added to the modulation signal. When the noise power and modulation signal power ratio of 0.3 is 0.001,0.01,0.05,0.1 and demodulation and modulation signals mapped)

说明：  最小二乘法的Matlab参数辨识程序（含实例）(Matlab least squares method of parameter identification procedures (including examples))

matlab学习书籍，对于初学者特别有用。(matlab learning books, particularly useful for beginners.)