| Z跟踪技术下C/A码与P（Y）码伪距的精度比较 |
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| 引用本文： | 彭秀英,范士杰,孔祥元.Z跟踪技术下C/A码与P（Y）码伪距的精度比较[J].勘察科学技术,2006,7(2):25-27. |
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| 作者姓名： | 彭秀英 范士杰 孔祥元 |
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| 作者单位： | 1. 中国石油大学,资信学院,山东·东营,257061
2. 武汉大学,测绘学院,武汉市,430079 |
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| 摘 要： | 由于AS(Anti-Spoofing)政策的实施,给广大GPS非特许用户的精密测距和高精度导航、定位带来了不少困难,Z跟踪技术就是消除或减弱AS政策影响的一个有效方法。该文首先阐述了利用Z跟踪技术进行保密P(Y)码伪距测量的基本原理,然后采用自行编制的基于精密星历的单点定位程序,利用IGS跟踪站观测数据进行了计算,对C/A码与P(Y)码伪距的精度进行了比较,证实了Z跟踪技术的有效性。
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| 关 键 词： | AS P(Y)码 Z跟踪技术 单点定位 |
| 修稿时间： | 2005年7月8日 |
Accuracy Compare on C/A Code and P Code Pseudoranges Based on Z-tracking Technique |
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| Peng Xiuying,Fan Shijie,Kong Xiangyuan.Accuracy Compare on C/A Code and P Code Pseudoranges Based on Z-tracking Technique[J].Site Investigation Science and Technology,2006,7(2):25-27. |
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| Authors: | Peng Xiuying Fan Shijie Kong Xiangyuan |
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| Abstract: | Due to AS policies,unauthorized users have many difficulties on GPS precise ranging,navigation and positioning.Z-tracking technique is one effective method to eliminate the effect of AS.This paper firstly gives the principles of using the Z-tracking technique to measure confidential P(Y) code pseudoranges,then a large data set from IGS tracking stations is utilized for analysis and verification with the help of a precise satellite ephemeris-based point positioning software developed by authors.Some conclusions are given in the paper. |
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| Keywords: | AS(Anti-Spoofing) P(Y) code Z-tracking technique point positioning |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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