一种远距离复杂电磁环境中的通信方式及应用  

A Communication Mode and its Application in a Complicated Electromagnetic Environment

作　　者：习喜龙[1] 刘勇[2] 李光磊[3] 周岗[1] 

机构地区：[1]海军工程大学电气与信息工程学院,武汉430033 [2]海军工程大学科研部,武汉430033 [3]中国人民解放军海军驻九江地区军事代表室,江西332007

出　　处：《船电技术》2010年第8期11-15,共5页Marine Electric & Electronic Engineering

摘　　要：在现代船舶控制系统中,复杂的电磁环境使数字信号的获取与远距离传输面临极大的挑战。本文采用数字式传感器采集数字信号,并将其转换成单位周期包含特定个基准晶振频率周期的频率信号,实现复杂电磁环境下的频率传输。相对传统的数字与频率成线性的D/F(Digital to Frequency Conversion),F/D转换,数字与周期成线性的转换方式在实时性与精度上具有更大的优势。同时由于采用的是频率传输方式,对于使用环境的适应性更强。且可以根据使用环境的不同,选择最合适的频带,实现抗干扰能力的最大化。In modern marine control system,it is a challenge to get and carry out long-distance transmission for digital signal in Complicated Electromagnetic Environment.In this paper,digital sensor is used to acquire digital signal.Then,each digital signal corresponds to a frequency signal which include specific numbered period of reference frequency and make it transmit in complicated electromagnetic environment successfully.This new data transforming method is more real-timing and accuracy than traditional D/F,F/D which make the digital signal linearization to frequency.The frequency transmission used in this system makes this method more useful in complicated environment.Different frequency band can also be chosen in different environment to improve the interference.

关 键 词：复杂电磁环境 数字信号 D/F转换 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]