中国民航大学学报

• 民用航空 • 上一篇    下一篇

抗旋转BD 接收机跟踪环路设计

胡铁乔,刘瑞杰,李瑞琴   

  1. (中国民航大学智能信号与图像处理重点实验室,天津300300)
  • 收稿日期:2015-09-16 修回日期:2015-10-21 出版日期:2016-04-23 发布日期:2016-06-03
  • 作者简介:胡铁乔(1970—),男,河南洛阳人,副教授,硕士,研究方向为自适应信号处理、阵列信号处理、硬件系统的设计与实现.
  • 基金资助:

    国家自然科学基金项目(61271404,61471363);中央高校基本科研业务费专项(3122014D008)

Tracking loop design of anti-rotation BD receiver

HU Tieqiao, LIU Ruijie, LI Ruiqin   

  1. (Intelligent Signal and Image Processing Key Lab of Tianjin, CAUC, Tianjin 300300, China)
  • Received:2015-09-16 Revised:2015-10-21 Online:2016-04-23 Published:2016-06-03

关键词: 载体旋转, 导航卫星信号, 跟踪环路, 多普勒频移

Abstract:

In the case of carrier rotation, the navigation satellite signal received by receiver will have additional lager Doppler frequency shift, resulting in a decline in the receiver tracking performance and even failure. In order to solve this problem, a scheme is proposed to help the receiver track navigation satellite normally with rotating carrier. Based on traditional loop, the adding of auxiliary channel realizes real-time estimation of rotating speed to assist loop tracking. Simulation proves that the improved loop can effectively reduce the adverse effects caused by carrier rotation and achieve normal signal tracking.

Key words: carrier rotation, navigation satellite signal, tracking loop, doppler frequency shift

中图分类号: