DSP_pithshifter.m

说明：  由于matlab提供了一些很有用的计算方法 但是大部分用户只用到其中一部分的功能 所以写了一个包括解方程，矩阵计算，排序功能的代码(As matlab provides some very useful method but most users only use part of the function it was a including solving equations, matrices, and sorting code)

Question 1 Question 2 Question 3 3-a) Gaussian filtering with different values ​ ​ ecrats types of noise Gaussian 3-b) Gaussian filtering with different values ​ ​ ecrats types of noise pulse Question 4 4 - a) Median filtering with different window sizes of a noise Gaussian 4-b) median filtering with different window sizes of a noise pulse Question5 5-a) sigma filter applied to a Gaussian noise 5-b) sigma filter applied to an impulse noise 6 - Conclusion

使用matlab软件对信号去噪处理，并显示出图像。(The use of MATLAB software for signal denoising, and display the image.)

这是天津大学matlab讲义-赵国瑞 感觉讲得挺不错！(This is the Tianjin University matlab lecture- Zhao Guorui speak quite in a good feeling!)

说明：  一篇基于交叉粒子群的改进算法，适于无线传感器的优化路由(A cross-Based Particle Swarm improved algorithm for optimization of routing in wireless sensor)

变焦系统的共轭距调制程序，自动计算变倍组与补偿组的共轭距离。可快速计算变倍光学系统共轭距(Conjugate zoom system from the modulation process, automatically calculates the zoom group and compensation group conjugate distance. Can quickly calculate the conjugate variable optical system from the)

dsb code for understanding it in matlab

MATLAB IMPLEMENTATION OF ASTAR ALGORITHM

libc 详细说明了C库里代码的实现过程，里边有详细的注释(detailed description of the C library libc code implementation process, detailed notes inside)

cognitive radio hole spectrum detection using fixed threshold and reading from excel file