| FX919B在无线数传电台中的设计与应用 |
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| 引用本文： | 陈少华,李桂林.FX919B在无线数传电台中的设计与应用[J].大连铁道学院学报,2007(2). |
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| 作者姓名： | 陈少华 李桂林 |
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| 作者单位： | 大连交通大学电气信息学院 辽宁大连116028 |
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| 基金项目： | 大连市科技计划资助项目(2005C11CG208) |
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| 摘 要： | 介绍了美国CML公司的4电平FSK调制解调芯片FX919B在无线数传电台中的应用,通过对现有VHF/UHF话音电台的改造来实现数据信号的无线传输.并采用同时在压控和振荡源两点进行调制的方法,解决了实际应用中利用模拟调制系统进行数字信号传输时存在着大量直流分量,无法调制低频信号到载频上的技术难题,为在现有模拟设备上进行高速数据传输提供了一种新的思路.
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| 关 键 词： | 无线数据传输 4电平FSK 信道编码 |
FX919B Design Application and in Wireless Data Transmitter-Receiver |
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| CHEN Shao-hua,LI Gui-lin.FX919B Design Application and in Wireless Data Transmitter-Receiver[J].Journal of Dalian Railway Institute,2007(2). |
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| Authors: | CHEN Shao-hua LI Gui-lin |
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| Abstract: | The application of four-level FSK module FX919B of the USA CML company is introduces in the wireless data transmitter-receiver.Through changing the VHF/UHF Frequency Modulation equipment,the method of wireless data transmission is obtained.And adopt modulated methods in voltage-controlled and oscillating source,resolving the problem of existing large amount of direct-current in the digital signal transmission and having no way to modulate the low frequency signal.Provide a kind of new thought for high-speed data transmission in the simulated equipment. |
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| Keywords: | wireless data transmission 4 levels FSK channel coding |
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