MATLABFFT-harmonic-analysis

MATLAB initiation for help you read it .

说明：  对一列数据波形进行画图，频谱、功率谱分析。参数根据需要改动一下即可(Waveform data of a drawing, spectrum, power spectrum analysis. Click to change parameters as needed)

THIS FOLDER CONTAINS THE MATLAB PROGRAMS FOR CHAPTER 6 OF RADAR SYSTEMS BY MAHAFZA

simulation on simulink of a modulation/desmodulation in gmsk with filter.

This matlab code for Multi-level discrete two-dimension wavelet transform based on lifting method.

说明：  把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,即可算得两路分量的幅度一 ％致性 把I、Q两路信号合成一个复数信号,作FFT ,对得到的频谱求镜像抑制比。(The I, Q signals, respectively, for the two FFT, to identify the range of frequency domain signal can be considered two-way range of 1 weight of the letter I, Q synthesis of two-way signal a plural signal for FFT, to obtain the spectrum for image rejection ratio.)

基于matlab实现sift描述符程序，经测试可用，效果有待提高！(achieve sift descriptor， program has been tested and is available, the effect needs to be improved!)

有限元方法计算中3角形单元3节点模型建立，可解决平面应力和应变问题(Finite element method to calculate the Triangle 3 nodes model, which can solve the problem of plane stress and strain.)

粒子群算法（PSO）实例应用，优化计算梯级水库水位、发电量(PSO hydropower)

对信号进行EMD分解程序，并根据相关性，去掉一些成分。(The EMD decomposition program is performed on the signal, and some components are removed according to the correlation.)