QPSK定时同步代码，采用Gardner定时同步算法 qpsk_demod

说明：  均匀平面天线阵列的三维极化方向图，matlab语言。(Antenna Polarization for Uniform Planar Array)

一种Ipod Shuffle Cable检测程序(One kind of Ipod Shuffle Cable testing procedures)

用于can通讯的 can 总线协议iso 15765的中文翻译，虽然有些地方不大准确，但可以对照英文一起看，方便英文不大好的同学(Communication can be used can bus protocol iso 15765 Chinese translation, although in some places is not accurate, but can be controlled in conjunction with the English, to facilitate the students English is not good)

（1） 分析QPSK调制、解调原理，并画出其系统框图； （2） 产生等概率且相互独立的二进制序列，作为待传输的信号，并画出其波形； （3） 进行8PSK调制，分别画出I、Q两支路信号经过乘法器后的波形以及8PSK调制波形； （4） 产生均值为0，方差为1的加性高斯随机噪声，画出其时域波形及频谱； （5） 将加性高斯随机噪声作为传输信道的干扰，画出接收端信号的时域图； （6） 进行8PSK解调，输出解码序列，画出解调后信号波形； （7） 计算系统信噪比、传输误码率。((1) analysis of QPSK modulation, demodulation, and draw the system block diagram (2) have equal probability and independent binary sequence as a signal to be transmitted, and draw the waveform and (3) 8PSK modulation, Draw the I, Q two way signal multiplier waveform and 8PSK modulation waveform (4) to produce zero mean and variance of an additive Gaussian random noise, to draw the time-domain waveform and spectrum ( 5) the additive Gaussian random noise interference as a transmission channel, to draw the time-domain diagram of the receiver signal (6) 8PSK demodulator output decoding sequence, draw the demodulation of the signal waveform computing system (7) signal-to-noise ratio, the transmission bit error rate.)

dqpsk的完整調製解調，采用costas載波同步(DQPSK complete modulation and demodulation, using Costas carrier synchronization)

fpga时钟，是入门的基础；希望对大家有帮助！(fpga clock, is the entry of the base want to help you!)

高通平台电信版CDMA手机写入MEID号码(Write MEID tool for Qualcomm platfrom)

中国电信CDMA终端需求规范 数据终端AT命令接口分册 (China Telecom CDMA terminal needs AT command interface specification data terminal branch)

说明：  1. 程序完成了BCH信道编码+BPSK调制解调技术在线性高斯白噪声环境下的通信仿真，并且绘制了多个编码格式下的误码率-比特信噪比（Eb/N0）仿真曲线 2. BPSKCode.m 主程序入口，运行该文件执行主程序(1. The program completes the communication simulation of BCH channel coding + BPSK modulation and demodulation technology in linear Gaussian white noise environment, and draws the simulation curves of BER bit signal to noise ratio (EB / N0) under multiple coding formats 2. Bpskcode. M main program entrance, run the file to execute the main program)

GMSK的调制解调原理分析，包含MATLAB程序代码，代码后有注释(GMSK modulation and demodulation principle analysis, including MATLAB program code, code after annotations.)