ofdm_fading

核主元分析程序，利用核函数将非线性数据映射到线性空间，再利用主元分析提取特征数据。(KPCA procedure uses the kernel nonlinear data mapped into linear space, and then using principal component analysis to extract feature data.)

基于MATLAB的语音滤波器，通过MATLAB使原来的语音信号分别进行带通，高通，低通滤波，得到更好的效果(MATLAB-based voice filter through the MATLAB so that the original speech signal, respectively, for band-pass, high pass, low pass filter, to get better results)

使用matlab 程序，在数字图像中选择您感兴趣的目标区域并显示出来(select an area of your interest)

说明：  经典程序例子,matlab语言编制的。 可供学习者参考(Classic example of the procedure, matlab languages. For learner reference)

Fourier coherence This program calculates the fourier coherence of a signal using cpsd function of matlab. Input and output are explained in file.

基于fdtd算法下，利用matlab编程创建问题空间中目标的几何形状的源代码(Based on FDTD algorithm, use matlab to create goals in the problem space geometry of the source code)

matlab设计程序用FFT对信号作频谱分析(matlab program designed to make the signal with the FFT spectrum analysis)

交错网格时间二阶空间十二阶声波方程数值模拟，加PML吸收边界，倾斜地层(Staggered grid space second-order time 12 order acoustic equation numerical simulation of the PML absorbing boundary, tilted strata)

该程序仿真了机载雷达对地面微动目标成像过程及结果。验证了微动的成对回波理论及微动对雷达成像造成的影响，改变微动参数，可看到鬼影点、灰度条带、直线圆列等由于微动参数不同而产生的不同现象。(refer to the chinese introduction)

Creates a Wigner-Ville spectrogram