LDPCdemo

通过重心法确定光斑图像的中心。根据个像素的灰度值和所在的位置乘积和总面值作比，进而求得重心。(Through the center of gravity method to determine the center of the image spot. According to the gray-scale pixel value and the location of the product and the total for more than face value, and then get the focus.)

说明：  偏微分方程的特殊解法，非常经典，欢迎下载(Special solution of partial differential equations, very classic, please download)

说明：  在MATLAB环境下的3780点FFT仿真(The Simulation of 3780 point FFT in MATLAB environment.)

用split-step方法求解非线性薛定谔(NLS)方程的例子(This code solves the NLS equation with the split-step method)

该文件主要包括了matlab的一些主要应用例程!对学习matlab很有帮助(The documents include the Matlab routines, some of the major application! Matlab helpful for the study)

信号的FFT变换、经典功率谱分析和现代功率谱分析，周期图法、尤利沃克方法、burg方法、协方差和改进协方差方法(Signal FFT transform, the classic power spectrum analysis and modern power spectrum analysis and periodogram method, method of Julius walker, burg, covariance and the covariance improvement method)

说明：  基于小波的图像压缩的MATLAB程序，可以运行，我试验过(Wavelet-based image compression MATLAB program, you can run, I tried)

主要实现的是系统在分布式管理下，在一定可靠性的条件下，系统的稳定性的判断。通过得到的计算值来估算系统的可靠性。(Mainly achieved in distributed under the management of the system, the reliability of certain conditions, the stability of the system of judgments. Obtained by calculating the value of to estimate the reliability of the system.)

用matlab编写的程序，关于MATLAB图像处理的边缘检测等等。(Matlab program, on matlab image processing, edge detection and so on )

AVO地震响应，描述反射系数随炮检距的变化，为砂泥岩含气模型，属于第一类AVO(AVO seismic response, describing the reflection coefficient variation with offset for sand shale gas models belonging to the first category AVO)