1420072331

合成孔径雷达成像代码以及噪声干扰代码，主要是SAR的RD算法以及射频、调相、调频、调幅噪声(Synthetic aperture radar imaging code and noise code, mainly is the SAR, RD algorithm and radio frequency, phase modulation, frequency modulation, amplitude modulation noise)

far field modelling of active optical fibre 2 core

采样系统实时信号的频谱分析MATLAB程序(Real-time signal sampling spectral analysis program MATLAB)

wimax-mimo.alamouti-ofdm仿真程序，内附详细使用说明。(wimax-mimo.alamouti-ofdm simulation program, containing detailed instructions.)

各种形式的方向图，波束形成中有常规波速形成，等等(Various forms of pattern, with a conventional beamforming beamforming, etc.)

有关DCT变换域的水印嵌入及提取MATLAB源程序(The DCT transform domain watermark embedding and extraction of MATLAB source code)

本代码实现基于Retinex理论的三种方法，分别为单尺度Retinex，多尺度Retinex，以及自商图像方法。直接运行每个文件夹下的test文件就可以得到对应的方法的处理结果。(This code implements three methods based on Retinex theory, respectively, for the single-scale Retinex, the multiscale Retinex, as well as self-quotient image method. The test file can be run directly under each folder corresponds to the method of processing results.)

用修正协方差法对信号进行频率估计，并通过仿真图形得出该方法的优缺点。(The modified covariance method estimates the signal frequency, and graphics obtained through the simulation of the advantages and disadvantages of the method.)

matlab的sift算法调用库，很简洁(The sift algorithm matlab library calls, very simple)

fftshift 比较实数和复数傅里叶变换频谱的不同，以及N取值对其频谱特点的影响。(fftshift more real and complex Fourier transform spectrum of different, and the N values of the characteristics of its spectrum.)