ex3_33

说明：  matlab环境下用AR谱估计算法实现AR模型谱估计(matlab environment AR spectrum estimation algorithm using AR model spectrum estimation implementation)

这些是一些matlab代码对应书籍Imperialist Competitive Algorithm (ICA)" 的。(These files are the MATLAB code for "Imperialist Competitive Algorithm (ICA)" which in some papers is referred by "Colonial Competitive Algorithm CCA".)

fast and simple voxel traversal algorithm

说明：  Today’s wireless networks are characterized by a fi xed spectrum assignment policy. However, a large portion of the assigned spectrum is used sporadically and geographical variations in the utilization of assigned spectrum ranges from 15 to 85 with a high variance in time. The limited available spectrum and the ineffi ciency in the spectrum usage neces- sitate a new communication paradigm to exploit the existing wireless spectrum opportunistically

局部线性嵌入算法，由laurance等人于2000年science上发表，广泛应用于图像处理模式识别等领域，是一种流形学习算法。(the algorithm of locally linear embedding)

generating time varying channel for jakes or flat fading.

用matlab实现的人脸检测及识别 程序简单易懂(codes for people face dectection)

说明：   MATLAB 的分布式计算的研究型论文，要学习的人可以借鉴一下，欢迎大家分享啊。 ( MATLAB,everybody,please pay your attention to this file,it s useful for you maybe.)

C语言与MATLAB接口编程与实例，一本很好的编程指导书！(C programming language and MATLAB interfaces and examples)

This M Code simulate the effects of clipping and filtering on PAPR PAPR reduction in OFDM-based wireless standard.Also the performance of BER versus SNR of original OFDM signals with PAPR reduction based on clipping and filtering schemes over AWGN channel is evaluated. The simplest and most widely used technique of PAPR reduction is to basically clip the part of signals that are outside the allowed region.Clipping methode introduces both in band distortion and out of band radiation into OFDM signals which degrades the performance including the BER and spectral efficiency.Filtering can reduce out of band radiation after clipping although it can not reduce in-band radiation distortion.However, clipping may cause some peak regrowth so that the signal after clipping and filtering will exceed the clipping level at some point.To reduce peak regrowth a repeated filtering and clipping operation can be used to obtain a desirable PAPR at a cost of computational complexity increase.