Multilayer_Contrast_Enhance

QPSk Modulation using matlab spread spectrum systems MATLAB source code, wireless spread-spectrum communication system function

matlab files to play with cells

采用matlab进行傅里叶变换，将图像变换成频谱形式的图像。(Using MATLAB Fourier transform, the image is converted into a spectrum in the form of image.)

说明：  蓄电池仿真模型，电池为锂离子电池，11.2KWH，模型含开路电压和内阻的数据。(Battery simulation model, the battery is lithium-ion battery, 11.2kwh, the model contains open circuit voltage and internal resistance data.)

最速下降法优化，无约束，可以自己改进。很容易懂有简单的说明。(Steepest descent method optimization, non-binding, can improve. There is a simple easy to understand explanation.)

说明：  波达方向估计 频率估计 MUSIC 算法 空间角度分辨率有限(DOA)

对合成孔径雷达距离徙动校正处理，思路清晰条理性强。(For synthetic aperture radar distance to compression processing, as distance to matched filter, clear thinking well organized. )

Fast Gaussian Convolution with Recursive Filtering.

实现扩频系统。信源产生，扩频，基带成型后加噪声，解扩，低通。判决(Achieve spread spectrum system. Source production, spreading, baseband shaping, add noise, despreading, low-pass. Judgment)

calculate joint entropy of two images