project1

说明：  OFDM信号的循环谱密度，非常详细，根据协议编的，外面非常少见！(OFDM signals in cyclic spectrum density, very detailed, made under the agreement, the outside is very rare!)

实验串口通信，专用于电子科技大学中山学院的实验箱，有兴趣的同学可以选的下载哦(Experimental serial communication, dedicated to the electronic science and technology university of Zhongshan college of experimental box, interested students can choose to download oh)

cdma系统，发射机采用直接扩频序列后发射，接收机采用MMSE接收机(cdma systems, the transmitter after the launch of direct sequence spread spectrum receiver using MMSE Receiver)

IEC103规约应用的知识要点文档，对学习iec103协议的人帮助很大(IEC103 application of the knowledge elements of the Statute of the document, to learn iec103 agreements were of great help to)

多线程串口编程，程序是使用arm加华为的GPRS模块进行测试 方便大家修改(Multithread serial programming, program is to use the arm GPRS module testing Huawei to facilitate change)

说明：  线性相位 FIR 低通、高通、带通和带阻滤波器的设计方法，频率采样设计法的基本概念和线性相位的实现方法。几种线性相位的特点，熟悉和掌握矩形窗、三角形窗、汉宁窗、海明窗、布莱克曼窗、凯塞窗设计 IIR 数字滤波器的方法，频率抽样设计法的线性相位的设计方法，并对各种线性相位的频率抽样法的设计给出调整和改进。 利用 MATLAB 进行各类 FIR 数字滤波器的设计方法。(The design method of linear phase FIR low pass, high pass, band pass and band stop filter, the basic concept of frequency sampling design method and the realization method of linear phase. Familiar with and master the design methods of IIR digital filter of rectangle window, triangle window, Hanning window, Heming window, Blackman window and Kaiser window, and the design methods of linear phase of frequency sampling design method, and adjust and improve the design of frequency sampling method of various linear phases. Matlab is used to design all kinds of FIR digital filters.)

说明：  harr小波变换，源码及仿真，很好用，初学者可用(Harr wavelet transform, available for beginners)

Zigbee Home Automation Webinar

这个matlab代码仿真了M-QAM的传输。M的取值不同，调制方式分别为4QAM，16QAM，64QAM等。传输信道为AWGN信道，能出误码率曲线。(The matlab code simulation of the M-QAM transmission. The value of M, the modulation mode of 4QAM, 16QAM, 64QAM. The transmission channel is AWGN, the BER curves.)

mini2440上qtopia应用程序开发步骤(arm-qtopia版本)(mini2440 steps on the qtopia application development (arm-qtopia version))