基于北斗系统的高可靠箭载无线定位装置

A highly-reliable wireless positioning device on rocket based on beidou sysemChen Wei,Lou Sha,Zhao Wei-jun,Liu Wen-Yi,Bai Jia

摘要:

介绍了一种高可靠、高精度、低成本的箭载无线定位装置。通过解算北斗系统卫星导航电文,实时获取安装位置的定位数据；利用北斗系统RDSS业务短报文通信功能,将定位数据发送给地面手持终端,从而辅助地面搜寻人员快速找到火箭残骸。在产品设计中,除考虑功能性能指标实现外,还针对设备的可靠性开展了大量工作,从导航信号的自主可控性、上下行通信链路的裕度、设备工作的环境适应性以及重要模块的冗余设计等方面进行了总体方案设计。经飞行试验验证,该无线定位装置水平定位精度优于5m,实现了残骸回收“下车即见”的预定目标。

Abstract:

This paper introduces a high-reliability, high-precision and low-cost wireless positioning device on Rocket. The device Acquires the installation location in real time through calculating satellite navigation message of the beidou System , and sends the location data to the ground handheld terminal utilizing the short message communication function of Beidou RDSS service. With the help of the wireless positioning device, ground search personnel can find the remains of the rocket faster than before. In product designing, not only the realization of functional performance index is considered, but also aimed at the reliability of equipment. The overall scheme is designed from the aspects of autonomously control of Navigation signal, margin of upstream and downstream communication links, environmental adaptability of equipment operation and redundancy design of important modules. The results of the flight text show that the horizontal positioning accuracy of the wireless positioning device is better than 5meters, and the expected target of debris recovery is realized.