Untitled4

自编实现快速fft程序，速度较调用系统的fft稍慢(Fast fft own procedures, faster than the system call fft slower)

function [a,b] = pade(x,p,q) PADE Model a signal using the Pade approximation method ---- Usage: [a,b] = pade(x,p,q) The input sequence x is modeled as the unit sample response of a filter having a system function of the form H(z) = B(z)/A(z) The polynomials B(z) and A(z) are formed from the vectors b=[b(0), b(1), ... b(q)] a=[1 , a(1), ... a(p)] The input q defines the number of zeros in the model and p defines the number of poles.

实现matlab中一些经常使用的功能，只要将其加入matlab中的path里，就可以直接调用这些函数。(err)

matlab仿真的，功能是实现相关峰值的提取。能够在低信噪比下得到效果较好的相关峰(matlab simulation, feature extraction is to achieve correlation peak. Able to get better low SNR correlation peak)

the algorithm is canny edge detector that is used to detect edges in an image.

主成分分析法的matlab源程序，有用这种方法处理图像的不妨一试(Principal Component Analysis of the matlab source code, useful this method may wish to deal with images of one test)

OS-EM迭代算法 用于图像重建，是一种新的图像重建方法，可以有效减少伪影(OS-EM iterative algorithm for image reconstruction, is a new image reconstruction method can effectively reduce the artifacts)

sart ct reconstruction using sart. just for simulation. the file type is .7z

本课题主要研究当信道中的加性噪声为高斯白噪声时，对接收端数字信号的判决带来的影响。 通过实验的手段分析信道无噪声的情况时，对接收端译码译码带来的影响；通过实验的手段分析信道有噪声的情况时，对接收端译码译码带来的影响； 代码可直接运行，包括基带下的误码率仿真，频带下的仿真，以及相互间的对比。界面很好(Signal in channel transfer process, not only by the channel itself, it brought, also influenced by the additive noise, Gaussian white noise is a communication channel additive noise. The main subject of study when the additive channel noise is white Gaussian noise, the impact of digital signal on the receiving end of judgment. By means of analysis of the experimental channel without noise, the impact on the receiving end decoding decoding noisy channel decoder decoding on the receiving end, the impact by means of analysis of the experiment )

时间序列ARMA建模，适用于各种ARMA建模，非常好用的通用程序(Time series ARMA modeling, suitable for all kinds of ARMA model, general program is very nice)