threshold

This algorithm solves the otimization problem min_x | y - A x |_2^2 + lambda Phi(x) and has applications in compressed sensing, image restoration and reconstruction, sparse regression, and several other problems.

隐马尔科夫程序，主要用于语言识别，已经调试好叻，效果很好。(Hidden Markov program, mainly used for speech recognition, has good debugging Ratchasima, the effect is very good.)

This code consist of various filters and their comparison, The performance metrics are determined using PSNR value, SSIM value.

现代通信系统matlab第五章基带数字传输源代码(Modern communications systems Chapter matlab source code baseband digital transmission)

CT图像重建中的代数重建工具包(AIR Tools is a MATLAB software package for tomographic reconstruction (and other imaging problems) consisting of a number of algebraic iterative reconstruction methods. The work was carried out as part of the project CSI: Computational Science in Imaging, funded by the Danish Research Council for Technology and Production Sciences, and headed by Prof. Per Christian Hansen, DTU Compute. The collaborators are DTU Compute, Dept. of Electronic Systems at Aalborg University, and MOSEK ApS. The main part of the Matlab code was written by Maria Saxild-Hansen. The core of the functions fambeamtomo, paralleltomo, and seismictomo was written by Jakob Sauer J鴕gensen.)

svpwm of open loop three level inverter

小波分析，用于时间序列的周期性分析，更换函数即可使用(Wavelet analysis is used for periodic analysis of time series, and can be used to replace functions.)

to search centroid from image

说明：  实现经典的SIFT方法，希望对大家有帮助，能给大家提供方便(Realize classic SIFT method, giving everyone the convenience, we want to help )

高级变换的fft，dft代码实现，包括结果的绘图(fft and dft realization)