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近年来，基于FPGA的高速的模数转换器设计得到了广泛的应用。随着现代电子技术的应用和发展，越来越多的电子应用由模拟系统向数字系统转变，而AD转换器为模拟系统和数字系统的界面-In recent years, FPGA-based high-speed ADC design has been widely used. With modern electronic technology application and development, more and more electronic app
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一本很好的基于matlab的通信原理模型，里面有所有模型的代码-A good model of communication theory based on matlab, there are all models of the code
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ODBC编程实例，使用ODBC对基于开关量数据采集卡的通信接口设计与实现。-ODBC programming examples, using ODBC for data acquisition card based digital communications interface design and implementation.
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nco的产生原理的相关代码；软件无线电、直接数据频 率合成器（DDS，Direct digital synthesizer）、快速傅立叶变换（FFT，Fast Fourier Transform） 等的重要组成部分，同时也是决定其性能的主要因素之一，用于产生可控的正弦波或余弦波。随着芯片集成度的提高、在信号 处理、数字通信领域、调制解调、变频调速、制导控制、电力电子等方面得到越来越广泛的应用-nco the generation principle of the relevant code s
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一个基于tcp和udp的客户端和服务器 实现tcp连接通信 udp进行数字运算返服务器回结果给客户端-Tcp and udp-based client and server implementations udp tcp connection for digital communications operator returns results back to the client server
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power spectrum density for different digital communications schemes
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实用数字签名的步骤
（1）发送方使用MD5算法对通信内容进行计算，获得一个固定长度的信息摘要；
（2）发送方用自己的私钥加密生成的信息生成发送方的数字签名，发送方把这个数字签名作为发送信息的附件和明文信息，一同用接收方的公钥进行加密，将加密后的密文一同发送给接收方；
（3）接收方首先把接收到的密文用自己的私钥解密，得到明文信息和数字签名，再用发送方的公钥对数字签名进行解密，然后使用相同的单向散列算法来计算解密得到的明文信息，得到信息摘要；对比计算出来的信息摘要和发送方发送过来的信息摘
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This code is related to the course Digital Communications.
It easily reproduces the error probability
as a function of the SNR per bit for QPSK and 16-QAM systems using MATLAB
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This code is related to the course Digital Communications. It reproduce the error probability
as a function of the SNR per bit for 16-QAM. Enjoy it!
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This code is related to the course Digital Communications. It makes a simple communication system which uses AWGN and QPSK
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This code is related to the course Digital Communications. It simulates a communication system which uses AWGN and 16QAM
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This code is used in the course Digital Communications. It simulates 16QAM mode with different SNRs.
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本书以MATLAB 7为版本，由浅入深地介绍MATLAB的工作环境、基本语法、数值运算、符号运算、二维和三维图像创建与编辑、高级图形图像处理、句柄图形、图形用户操作接口（GUI）、程序设计与调试、M文件的使用、MATLAB编译器、Simulink交互式仿真集成环境的应用，以及MATLAB的外围功能和应用程序接口等内容；并通过MATLAB在高等数学、信号处理及数字通信、数字图像处理方面的应用，介绍MATLAB在实际中的应用。-Book MATLAB 7 to version, it gradual
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DIGITAL CHAOTIC COMMUNICATIONS IT USE CHAOTIC SIGNALS AS A CARRIER
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Digital signal processing (DSP) algorithms exhibit an increasing need for the
e#cient implementation of complex arithmetic operations. The computation of
trigonometric functions, coordinate transformations or rotations of complex valued
phasors
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this code is about different types of digital communications
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Baseband Pulse and Digital Signaling in digital communications
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Matlab is an ideal tool for simulating digital communications systems, thanks to
its easy scr ipting language and excellent data visualization capabilities. One of the
most frequent simulation tasks in the field of digital communications is bit-e
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matlab code for reduction of ISI in digital communications
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Pseudo noise (PN) sequences are widely used in
digital communications and the theory involved has been treated
extensively in this paper.
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