agh_chapter06

knn算法程序，它是一种基于matlab的模式识别算法，用于文本或其他数据样本的分类。(KNN algorithm based on matlab, the pattern recognition algorithm, the use of classification and identification.)

fft fft folder contains fft and crop an image.

本文描述了APSK的调制与解调算法，并进行了仿真，希望对大家有一定的帮助。(This paper describes the APSK modulation and demodulation algorithm and simulation, we hope to have some help.)

Encoded by Systematic convolutional code, decoded by Viterbi using Hamming distance.

本代码是用来检测图像的局部不变特征的，主要参考DAVID G. LOWE的sift的论文。变成工具是matlab。(This code is used to detect the image of local invariant features, the main reference DAVID G. Lowe s sift paper. Become a tool is Matlab.)

后向欧拉方法求解微分方程的初值问题，运用牛顿迭代解决implicit(backward euler solver for ODE)

现代通信系统（mantlab）第二版 配套源码(modern communication system (mantlab) second version supporting FOSS)

DTMF报告和代码，基于simulink仿真，通过GUI调用m代码和simulink，可加噪音。(DTMF reports and code, based on simulink simulation, call m code and simulink through GUI, can add noise.)

matlab 视频处理，图像处理，视频播放，图像跟踪等等等等(matlab video processing, image processing, video playback, image tracking, etc., etc.)

将1HZ的正弦波与5HZ的正弦波相加后进行傅里叶分析。(To be a 1 HZ ac sine wave and 5 HZ ac added sine wave after the Fourier analysis. )