Improved algorithm based on result zone for GNSS attitude measurement

jie LIShi; an LIZhi; lei PANGChun; lin YUYong; Yong WANG

doi:10.11959/j.issn.1000-436x.2016023

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Improved algorithm based on result zone for GNSS attitude measurement

Academic communication | 更新时间：2024-06-05

- Improved algorithm based on result zone for GNSS attitude measurement
- Journal on Communications Vol. 37, Issue 1, Pages: 192-198(2016)
- 作者机构：
  
  空军工程大学信息与导航学院，陕西西安 710077
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61273049)
- DOI：10.11959/j.issn.1000-436x.2016023
  CLC： TN967.1
- Online First：2016-01，
  
  Published：25 January 2016
- 稿件说明：
移动端阅览
jie LIShi, an LIZhi, lei PANGChun, et al. Improved algorithm based on result zone for GNSS attitude measurement[J]. Journal on Communications, 2016, 37(1): 192-198.
DOI：

jie LIShi, an LIZhi, lei PANGChun, et al. Improved algorithm based on result zone for GNSS attitude measurement[J]. Journal on Communications, 2016, 37(1): 192-198. DOI： 10.11959/j.issn.1000-436x.2016023.

摘要

针对基于值域的全球卫星导航系统（GNSS

global navigation satellite system）姿态测量方法没有考虑搜索域相关性而造成初始化时间长、搜索范围大的问题，提出了一种模糊度反约束值域搜索的改进方法。首先推导了固定基线长度条件下模糊度搜索空间，然后利用较小的2个搜索空间及其与俯仰角、航向角的关系重新确立了二维搜索域组合，最后根据值域搜索在基线二次残差最小情况下确定整周模糊度。实验结果表明，该算法充分利用了搜索域的相关性信息，减小了搜索空间，并将初始化时间缩短到40 s以内。

Abstract

The correlation of search zone was not included in the result zone algorithm for GNSS attitude measurement

which led to extended time for initialization and oversize range for searching

then an improved algorithm in which search zone was bounded by ambiguity was proposed in the following procedures. First

search space for ambiguity with the condition of fixed baseline length was deduced. Then combination of two dimensional search zone was established by the smaller two search spaces and their relations with heading and elevation angle. Finally the integer ambiguity was de-fined on the basis of result zone search with the mini l two-order residuals of baseline. The experiment reveals that the correlative information on search zone is fully exploited and the size of search space is reduced

with time for initializa-tion reduced to less than 40 seconds.

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Keywords

references

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