QPSKOFDM

说明：  针对数字卫星常用的 7 种通信信号调制方式(QPSK、8PSK、16QAM、32QAM、64QAM、16APSK、32APSK)，对零中心归一化瞬时幅度谱密度最大值、四次方谱、幅度、高阶累积量四种特征参数进行了分析，提出了一种联合特征参数的信号调制识别方法．(Aiming at seven communication signal modulation modes commonly used in digital satellite (QPSK, 8PSK, 16QAM, 32QAM, 64QAM, 16APSK and 32APSK), four characteristic parameters of zero-center normalized instantaneous amplitude spectral density, quadratic spectrum, amplitude and high-order cumulant are analyzed, and a signal modulation recognition method of joint characteristic parameters is proposed. Method.)

对铭泰读卡器不同扇区进行读写操作，初始化扇区，扇区信息加密。(Reading and Writing Mingtai Card Reader)

随着网络带宽的越来越大以及嵌入式技术和嵌入式设备的日益发展成熟，过去的很 多设备如今变成了可管理的网络设备，它们不仅嵌入了操作系统和拥有自己的IP 地址，而 且还通过嵌入web 形式的网络代理端以方便用户的控制和管理。本文通过在arm920t 的开发 板上移植BOA（一个开源的web server），并嵌入到接入网络设备当中以实现对其进行web 化的控制和管理。(With increasing network bandwidth and embedded technology and the increasing development of sophisticated embedded devices, over the past many devices now become manageable network equipment, which not only embedded operating system and has its own IP address, and through web forms embedded in the network proxy client to facilitate the user' s control and management. In this paper, the development board in arm920t transplant BOA (an open source web server), and embedded in the access network equipment for them to achieve their web based control and management.)

现代通信系统， 基于MATLAB的仿真，利用MATLAB学习通信原理(Contemporary Communication Systems Using MATLAB)

说明：  STM32F103C8T6最小系统资料包。最小系统板资料，通用资料。(Minimum system board data, general information.)

说明：  按信源编码、信道编码、传输、解码、计算分析的过程模拟实际MIMO技术的误比特率(Simulate the bit error rate of real MIMO technology according to the process of source coding, channel coding, transmission, decoding and calculation analysis)

Pin configuration for hy-640 GSM module

LDPC最小和译码算法，c语言实现，适合初学者(Minimum and LDPC decoding algorithm, c language, suitable for beginners)

有关卷积编码的维特比算法,是硬判决的啊,希望大家(The Viterbi algorithm about convolutional coding, it is hard to judge, I hope you all)

说明：  对接受到的调制信号的特征提取，用于调制识别(automatic modulation recognition)