magnifyOnFigure

这是一个关于图像识别的程序，可以根据图像中的某些点，识别出图像的形状(This is a program on the image recognition, according to some point in the image, identify the shape of the image)

说明：  modem.qammod对象实现M-QAM调制器，本示例中M为16。其输入参数是从0到15的整数而不是4bits二进制数据。因此，在利用此对象的modulate方法之前需要对二进制数据序列x进行预处理。特别地, 先采用MATLAB中的reshape函数将x沿着矩阵的行方向重新整理成每行4bit数据，然后应用bi2de函数将4bit数据转换成相应的整数。(modem.qammod object implements M-QAM modulator M in this example is 16. Input parameter is an integer from 0 to 15 instead of 4bits binary data. Therefore, before using the method of this object needs to modulate the binary data sequence x pretreatment. In particular, the first use of MATLAB reshape function x 4bit rearranged into each row of data in the row direction of the matrix, and then apply bi2de 4bit function to convert the data into the corresponding integer.)

说明：  sift 由兩張圖片算出特徵點匹配演算法(sift calculated by the two pictures feature points matching algorithm)

用MATLAB作切比雪夫-1型低通滤波器设计(Using MATLAB for-1 Chebyshev-type low-pass filter design)

Compute median frequency of a signal

OFDM Modulation and Demodulation

Turbo Convolution Code

有限元分析 清华大学 范子杰 有限元作业第9讲 薄板单元作业2(Finite element analysis of finite element Tsinghua Fan Zijie job Lecture 9 2 thin unit operations)

CLRC663 是高度集成的收发器芯片，用于 13.56 兆赫兹的非接触式通讯。CLRC663 收发器芯片支 持下列操作模式 • 读写模式支持 ISO/IEC 14443A/MIFARE • 读写模式支持 SO/IEC 14443IB • JIS X 6319-4 读写模式支持（等效于FeliCa 1 方案，请参阅章节 21.5） • 相应于 ISO/IEC 18092 的被动发起方模式 • 读写模式支持 ISO/IEC 15693 • 读写模式支持 ICODE EPC UID/EPC OTP • 读写模式支持 ISO/IEC 18000-3 mode 3/ EPC Class-1 HF CLRC663 能够透过内建发射器直接驱动外置天线与 ISO/IEC 14443A 或 MIFARE 卡片进行通信，而无 需附加有源电路。数字模块负责全部的 ISO/IEC 14443A 组帧和错误检测功能（奇偶校验和 CRC 循環 冗餘校驗）(The CLRC663 is a highly integrated transceiver IC for contactless communication at 13.56 MHz. This transceiver IC utilizes an outstanding modulation and demodulation concept completely integrated for different kinds of contactless communication methods and protocols at 13.56 MHz. The CLRC663 transceiver ICs support the following operating modes • read/write mode supporting ISO/IEC 14443A/MIFARE • read/write mode supporting ISO/IEC 14443B • read/write mode supporting JIS X 6319-4 (comparable with FeliCa 1 (see Section 30.5) scheme) • passive initiator mode according to ISO/IEC 18092 • read/write mode supporting ISO/IEC 15693 • read/write mode supporting ICODE EPC UID/ EPC OTP • read/write mode supporting ISO/IEC 18000-3 Mode 3 The CLRC663’s internal transmitter is able to drive a reader/writer antenna designed to communicate with ISO/IEC 14443A/MIFARE cards and transponders without additional active circuitry. The receiver module )

spectral-clustering-demo 谱聚类的matlab演示程序，是学习谱聚类的好资料，经调试通过，包含n-cut和改进的n-cut(spectral-clustering-demo demo matlab spectral clustering, spectral clustering is good information to learn by debugging through, including the n-cut and improving the n-cut)