摘要
经纬仪作为靶场主要的高精度外弹道测量设备,在使用过程中,经常与测控中心互传数据,在经纬仪对外通信中采用扩频通信技术,实现了远程通讯。本文主要介绍了扩频通信技术在经纬仪对外通信中的应用。介绍了扩频通信的原理及典型的工作方式,描述了几种典型工作方式的具体实现方法;重点介绍了扩频微波通信技术的特点、系统组成、使用方案及系统连接图;最后通过外场实验获得了检测结果。通信距离>30km;通信容量:动态图像>2Mbps,数据>38.4kbps;通信延迟<1s。实验结果表明,这种扩频通信技术能很好地应用在经纬仪上。
Theodolites as primary measuring equipment of external trajectory often exchange data with the center of measure and control. Adoption of spread-spectrum communication technology realizes long-distance communication in theodolite external communication. This paper recommends the application of spread-spectrum communication technology in theodolite external communication. The principle and typical work modes of spread-spectrum communication are introduced, the material realization methods of several typical work modes are explained, and the characteristics, system constitute, using scheme and system join drawing of spread-spectrum communication technology are recommended chiefly. At last, the measure results are obtained by testing in shooting range. Communication distance is more than 30 kilometer, communication capacity of dynamic image is more than 2 Mbps, communication capacity of dynamic image is more than 38.4 kbps; communication time delay is less than 1 s. The testing results show that the spread-spectrum communication technology applies well in theodolite.
出处
《光机电信息》
2011年第12期57-61,共5页
OME Information
基金
国家863计划资助项目(No.2006AA703104)
关键词
经纬仪
扩频通信
直接序列扩频
扩频微波通信
theodolites
spread-spectrum communication
DSSS
spread-spectrum microwave communication
