pca

The first scheme is based on the spatial locality of feature vectors corresponding to similar images. Learning is effected by modifying the query vector to incorporate the positive examples. The second scheme is based on “distorting” our view of the feature space. An new similarity distance between an image and the query is learned from the relevance feedback.

说明：  this file suppressed carrier AM with freq and phase offset

Laplacian Eigenmaps [10] uses spectral techniques to perform dimensionality reduction. This technique relies on the basic assumption that the data lies in a low dimensional manifold in a high dimensional space.[11] This algorithm cannot embed out of sample points, but techniques based on Reproducing kernel Hilbert space regularization exist for adding this capability.[12] Such techniques can be applied to other nonlinear dimensionality reduction algorithms as well.

说明：  各种测试函数的源代码，包括ackleysfunction、braninfunction等(Various test functions of the source code, including ackleysfunction, braninfunction etc.)

《MATLAB7.x数字信号处理》源代码。本书面向信号处理领域，在简要介绍信号处理基本概念的基础上，详细介绍了MATLAB工具箱函数及其使用，内容涵盖了MATLAB使用基础、高级编程和重要领域的应用。在结构安排上，本书立足于信号处理各个具体领域，并结合信息处理工具箱，以大量的程序访真为依托，讲解了MATLAB在信号处理中的具体应用。 本书结构合理，内容全面，图文并茂，实例丰富，适用面广，适合信号处理、自动控制、机械电子、自动化、电力电气、通信工程等专业的本科生、研究生、教师和科技工作者阅读。可作为数学信号处理课程的参考书，对涉及数字信号处理的各大院校师生具有重要的参考价值和实用价值。("MATLAB7.x digital signal processing" source code. Writing to the field of signal processing, signal processing briefly introduced the basic concepts on the basis of Details on MATLAB toolbox function and its use, which covers the use of MATLAB basis, Advanced Programming and important fields. Structural arrangements, the book based on the signal processing specific areas, and integrate information processing toolbox a large number of the procedures for the visit to really rely on the MATLAB on signal processing in the specific application. The structure reasonable, comprehensive and illustrated examples of rich, widespread applicability, suitable for signal processing, automatic control, machinery and electronics, automation, electrical power, telecommunications and other profes)

实现QPSK调制，映射成星座图上对应的复数点；将星座图上的复数点作QPSK解调。 16和64位QAM调制。(The QPSK modulation is mapped into the corresponding complex points on the constellation diagram, and the complex points on the constellation diagram are demodulated by QPSK. 16 bit and 64 bit QAM modulation.)

自己用Matlab编写的最优化算法,包括0.618,梯度法,共轭梯度法,罚函数法.(Their own written with Matlab optimization algorithms, including 0.618, gradient method, conjugate gradient method, penalty function.)

usefull doc for face detection and face recognition in matlab

《matlab应用大全》赵海滨编著，清华大学出版社，主讲数组与矩阵分析(The application of matlab Zhao Haibin compiled, tsinghua university press, speaker array and matrix analysis)

施瓦茨变换的代码，专门用于矩形区域的变换，matlab代码(The Schwartz transform code, specifically for the transform of the rectangular area, matlab code)