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3下载:
基于RS485的简单现场总线通信系统设计,功能如下:单发单收,在发送状态,能够连续发送从0到99的数字;
单发单收,在接收状态,能够接收数据,并在数码管上正确地显示出来;
单发多收,在AB完成的基础上,接上多个接收设备,能够正确发送和接收;
-Based on a simple RS485 field bus communication system design, the following functions: single single collection, send
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一个16QAM数字调制后的通信系统,包括信号发生器,调制器,信道传输,接收器,均衡器等部分-After a 16QAM digital modulation communication system, including the signal generator, modulator, channel transmission, receivers, and other parts of EQ
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软件无线电技术是用于卫星导航和第三代移动通信(3G) 数据处理和计算的最优解决方案。运用基于FPGA的So PC 嵌入式设计方法构造软件无线电系统,提高了对动态实时信号的处理能力。设计完成无线通信体系结构,以及ADC 模数转换,数字下变频,CPU 中央处理器,DSP 运算单元,PCI 桥以及数据控制等模块的详细组成。相对于目前常规系统,该系统在功耗和体积方面可节省30 以上,对高速数据流的处理和计算能力有显著提高,可以应用于Cellular/ PCS 基站,GPS 抗干扰接收机,相控阵接收机,频
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Bluetooth is a standard for short range,
low power, low cost wireless communication
that uses radio technology. Although originally envisioned as a cable-replacement technology by Ericsson (a major cell phone manufacturer) in 1994, embedded Bluet
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用Visual C++在局域网实现IP多播。一个数字电话会议系统由多个会场组成,当在其中一个会场的参会人发言时,要求其它会场都能即时的得到此发言的内容,这是一个典型的一对多的通信应用,通常把这种一对多的通信称为多播通信。采用多播通信技术,不仅可以实现一个发送者和多个接收者之间进行通信的功能,而且可以有效减轻网络通信的负担,避免资源的无谓浪费。-Using Visual C++ in the Local Area Network for IP multicast. A digital teleph
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Digital Communication Receivers - Synchronization, Channel Estimation, and Signal Processing
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基于RS485的简单现场总线通信系统设计,功能如下:单发单收,在发送状态,能够连续发送从0到99的数字;
单发单收,在接收状态,能够接收数据,并在数码管上正确地显示出来;
单发多收,在AB完成的基础上,接上多个接收设备,能够正确发送和接收;
-Based on a simple RS485 field bus communication system design, the following functions: single single collection, sending
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A timing error detector for Communication systems with simulink.
# Required versions Matlab 5.2.1, Simulink 2.2.1
# File descr iption
1. ti_det1.m (simulink version 5.2.1)
An s-function to be used for timing detector. For detailed i
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以电原理图为顶层, 设计一个异步通信接收器,波特率为19200,接收的数据为学号,并在开发板上用数码管显示。-Electrical Schematic diagram for the top layer, design an asynchronous communication receivers,the baud rate is 19200, the received data is the student numbers,display it using the digital tube.
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光纤相干通讯数字相干接收机,算法和子系统。一篇很精简全面的总结。-Digital coherent optical receiver algorithms and subsystems in fiber coherent optical communication. A very good brief summary.
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frequency division multiplexing (OFDM) is used extensively in broadband wired and wireless communication systems because it is an effective solution to intersymbol interference (ISI) caused by a dispersive channel. This becomes increasingly important
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this is a digital and analog electronic communication. this is best for students studying commincation.
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目前的通信频点越来越高, 而相对应的模数转换器以及数字信号处理等硬
件处理技术远远没有达到高频通信接收技术的要求。 这一定程度上限制了高频
通信的发展, 因为按照传统 Nyquist 采样的话, 通信接收机的成本将是巨大的。
压缩感知(Compressed Sensing,CS)技术有效地打破了传统 Nyquist 采样的限制,
而调制宽带转换器(Modulated Wideband Converter,MWC)的出现则真正在模拟
域欠采样实现了重大突破。(The communicat
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e Handbook Entry
Communication concepts: Fourier transforms, random signals, Transmitter
and receiver filters, matched filter, Nyquist criterion. Digital Modulation schemes:
M-ary ASK, QPSK, FSK, CPM, spectral analysis of modulated signals, ML and
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Synchronisation in digital communication
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