›› 2014, Vol. 27 ›› Issue (3): 99-.

• 论文 • 上一篇    下一篇

基于外辐射源照射的弹体滚转角测量技术

尚煜,张江华   

  1. (西安电子工程研究所 总体3部,陕西 西安 710100)
  • 出版日期:2014-03-15 发布日期:2014-03-11
  • 作者简介:尚煜(1988—),男,硕士研究生。研究方向:GPS/INS组合导航。E-mail:15829019325@163.com

Roll Angle Identification of Projectile Based on External Illuminators

SHANG Yu,ZHANG Jianghua   

  1. (Third Department of General Affairs Management,Xi'an Electronic Engineering Research Institute,Xi'an 710100,China)
  • Online:2014-03-15 Published:2014-03-11

摘要:

确定弹体滚转角信息是进行二维弹道修正的重要条件。针对此问题,文中提出了使用锁相环跟踪弹体天线接收外辐射源信号幅度变化,进而测量滚转角的方法,锁相环进入稳态后输出频率为转速、输出相位为弹体滚转角,并进行了半物理实验验证。仿真分析了基于外辐射源照射解算弹体滚转角的误差。结果表明,该方法无需安装磁强计,且滚转角解算误差不随时间积累,满足了滚转弹药平台的精度要求。

关键词: 外辐射源, 锁相环, 滚转角

Abstract:

Roll angel information of projectile is needed in trajectory correction.This article proposes the use of the phase-locked loop to track the change in received waveform with roll and then to measure the roll angle.The PLL outputs frequency when steady as roll speed and phase as the roll angel.Semi-physical experiments are implemented to verify this algorithm.Errors of roll angle solved by PLL are analyzed by simulation,which shows that the errors of roll angle solved by PLL do not accumulate over time.

Key words: external illuminators;phase locked loop;roll angle

中图分类号: 

  • TN911.8