face

极值理论中各种函数及图像的程序。matlab实现。(Extreme Value Theory in a variety of functions and process images. matlab achieve.)

用MATLAB语言描述的关于QPSK的无线通信系统仿真应用，如何产生QPSK信号(MATLAB language to describe the use of QPSK wireless communication system simulation applications, how to generate QPSK signal)

dq坐标转换及分析过程，matlab的实现(dq coordinate conversion and analysis, matlab implementation)

自己写的提取音频信号mfcc参数的算法，用matlab实现，欢迎大家参考(Write their own audio signal MFCC extraction algorithm parameters, using matlab to achieve, welcome to the reference)

说明：  求一段信号的过零率，可以用来提取信号的特征(Seeking a signal zero crossing rate, can be used to extract signal features)

基于能量检测的频谱感知.由于实际信道中的多径和阴影效应，单个认知用户频谱感知的性能受到影响，因此需要靠不同用户间的协同频谱感知来对抗多径和阴影效应。本设计要求在文中采用一种协作机制，即两用户进行协作频谱感知，提高主用户的检测率，减少检测时间，并且得到捷变增益。要求给出仿真结果。(spectrum sensing in cognitive radio based on energy detection.As the channels in diameter and shadow, not a single user spectrum of capabilities and therefore need different between a user to the spectrum is perceived as more and the effect. this design for the use of a coordination mechanism, the two users collaborate spectrum, the detection rate of increase and decrease the test of time and get a change requires immediate gain. some emulation. )

字符串转称函数matlab函数，gui设计常用，下载下来以备不时只需(string to function)

image processing sample programs

dafx required for many files

地震处理中的射线追踪程序及其应用程序，可以实现建模、射线追踪演示、偏移等多项功能(Ray-tracing program and its application。 Can achieve the modeling, ray tracing demo, raytrace migrate )