宇航学报

宇航学报 ›› 2011, Vol. 32 ›› Issue (11): 2351-2356.doi: 10.3873/j.issn.1000-1328.2011.11.008

• 制导、导航与控制 • 上一篇    下一篇

BOC导航接收机伪码测距零值分析

李彩华, 张鑫, 庞晶, 欧钢   

  1. (国防科技大学电子科学与工程学院卫星导航研发中心，长沙 410073)
  • 收稿日期:2011-04-29 修回日期:2011-07-08 出版日期:2011-11-15 发布日期:2011-11-11
  • 作者简介:10001328（2011）11235106
  • 基金资助:
    教育部新世纪人才支持计划（NCET-08-0144）

Zero Value Analysis of Pseudorange Measurement in Navigation Receivers for BOC Signals

LI Caihua, ZHANG Xin, PANG Jing, OU Gang   

  1. （Satellite Navigation R&D Center, School of Electronic Science and Engineering，National Univ. of Defense Technology，Changsha 410073，China）
  • Received:2011-04-29 Revised:2011-07-08 Online:2011-11-15 Published:2011-11-11

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摘要： 伪码测距零值是现代卫星导航领域的重要指标，目前对于高精度BOC导航接收机的信道建模和仿真尚没有一般性的量化分析方法。针对这种情况，提出了基于副载波相位消除跟踪算法的零值估计模型，并推导了任意信道特性滤波器与伪码测距零值的关系式，然后定量地分析了信道特性对于测距零值的影响；最后在软件接收机上进行了仿真检验。

关键词: BOC导航接收机, 零值, 伪码测距, 软件接收机

Abstract: Zero Value of pseudorange measurement is of great importance to navigation receivers. Up to now, there is no universal and quantificational method to model and simulate zero value for BOC signals. To address this issue, the theoretical model for estimating the zero value based on the tracking algorithm used to eliminate the subcarrier phase is firstly established in this paper, and the relation between channel characteristic and zero value of pseudorange measurement is derived. Then, we analyzed the impact of channel characteristic on zero value is analyzed quantitatively; At last, the analysis result is verified in a software receiver.

Key words: Navigation receiver for BOC signal, Zero value, Pseudorange measurement, Software receiver

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