Wavelet-Transform

该程序为极化SAR数据处理中基础算法，将S矩阵转为C矩阵，并转成envi格式，便于后续处理。(The program is the basis of polarimetric SAR data processing algorithms, the S matrix into a C matrix, and turn into envi format, to facilitate subsequent processing.)

说明：  Matlab关于FFT算法的编程及原理详细讲解！(Matlab programming on the FFT algorithm and principle explained in detail!)

impedence matrix formation

 产生长度为1000的标准正太分布的随机信号，画出时域波形及频谱；  采用u=255的非均匀PCM编码，每符号为8bit，画输入-输出关系图；  计算信号量化噪声比（SQNR）；  信道误码率为10-3；  解码，并画出u律反变换后的信号时域波形及频谱。 扩展要求：  采用均匀PCM、量化级数可变、信道误码率可变。 ( have a standard length of 1000 is too random signal distribution, draw time-domain waveform and frequency spectrum  u = 255 using the non-uniform PCM encoding, each symbol for 8bit, drawing input- output relationship diagram  calculated quantization noise signal than (SQNR)  channel bit error rate of 10-3  decoder, and law to draw u the signal after the inverse transform time-domain waveform and frequency spectrum. Expansion of the requirements:  uniform PCM, quantization level variable, a variable channel bit error rate.)

自己编写的ga（遗传算法）matlab工具箱。对比过，速度挺快的。(I have written ga (genetic algorithm) matlab toolbox. Been compared, the speed very fast.)

A MODEL-BASED METHOD WITH JOINT SPARSITY CONSTRAINT FOR DIRECT

为使随机序列具有相关性，这里是相关高斯序列生成的一种方法(co rrelated Gaussian sequences)

自己利用matlab自带的优化函数实现的svm(svm by myself)

小波变换程序，包括水平细节系数、垂直细节系数、近似细节系数、对角细节系数的显示(Wavelet transform procedures, including display horizontal detail coefficient, vertical detail coefficients and detail coefficients, the approximate diagonal detail coefficients)

偏最小二乘法简化方法，输入合适的数据，即可得到正确的主因子数，及回归方程。(Simplified method of partial least squares, enter the appropriate data, the main factor to get the correct number, and the regression equation.)