SGrey

说明：  研究在matlab环境下，fft的实现以及用matlab产生各种滤波器包括用双线性变换法以及脉冲响应不变法实现。(Research in the matlab environment, fft implementation and produce a variety of filters using matlab including the use of bilinear transform and impulse response method to achieve the same.)

DC to DC buck converter, with control loop.

forster特征点检测的matlab实现(forster feature point detection in matlab implementation)

趋势面分析是拟合数学曲面的一种统计方法。通常要找到一个合适的曲面精确表达实际问题往往比较困难，但却可以利用多项式函数来近似逼近它。(trend surface analysis is fitting surfaces of a mathematical statistical methods. Usually to find a suitable surface accurately reflect the actual problems are often more difficult, but polynomial function can be used to approximating it.)

二值化后边缘检测算法具体实现，用matlab编写的，有roberts,sobel,prewitt,log等算法的具体实现(value after two edge detection algorithm to realize the use of Matlab prepared, roberts, segmentation, prewitt, log, etc. of specific algorithm implementation)

CDMA coding and decoding mechanism

格式 [sqnr,a_quan,code]=u_pcm(a,n) 输入样值序列a 、量化电平数目n, 程序计算量化间隔、进行均匀量化、进行编码、计算量化信噪比， 返回量化信噪比squn、编码前的量化序列a_quan、编码后的码序列code。 (Format [sqnr, a_quan, code] = u_pcm (a, n) input sample value sequence a, the number of quantization levels n, the calculation procedures to quantify interval, the uniform quantization, coding, computing quantization noise ratio, return quantization noise ratio squn, to quantify the pre-coding sequence a_quan, coding sequences after the code.)

image and signal processing are used mostly right now. these programs is related to image processing. Image negative is used for the getting the negative image of the original image. and contrast stretching is for the give the middle value. Fast Fourier Transform program is used for the getting FFT of the signal.

matlab仿真控制仿真时间的程序段,简单方便的在matlab界面控制仿真停止时间。(matlab simulation control simulation time block, simple and convenient interface control in matlab simulation stop time.)

给定某项Zernike系数能够绘出对应的三维、二维图像，支持合并功能的GUI计算器。(Given a Zernike coefficient can draw the corresponding three-dimensional, two-dimensional images, and support combined function GUI calculator.)