首页|紧组合惯导系统精度分析——以Applanix POS MV为例

紧组合惯导系统精度分析——以Applanix POS MV为例

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随着移动测量技术发展,对高精度、连续、可靠、稳定的导航定位数据需求日益增多.本文针对复杂动态环境下单独GNSS导航定位难题,利用Applanix POS MV开展紧组合惯导系统精度试验研究.结论为:①紧组合导航定位精度明显优于单独GNSSPPK定位模型,尤其在角速率、姿态变化较大区域,组合导航定位精度优势更为显著;②紧组合导航定位系统跟踪所有卫星精度最高,关闭北斗卫星与仅跟踪GPS卫星精度相当,关闭GPS卫星精度损失严重;③紧组合导航定位系统PPK辅助定位精度优于RTX辅助定位精度,但RTX精度均优于0.05 cm,可满足大比例尺测图精度要求.结果表明,利用PPK或RTX辅助紧组合惯导系统在复杂情况下仍可提供高精度、连续、可靠、稳定导航定位数据.
Accuracy analysis of tightly combined inertial navigation system:taking the Applanix POS MV as an example
With the development of mobile measurement technology,the demand for high-precision,continuous,reliable,and stable navigation and positioning data is becoming increasingly strong. In response to the difficulty of single GNSS navigation and positioning in complex dynamic environments,Applanix POS MV is used to conduct precision experiments on tightly integrated inertial navigation systems. The research shows that:①The precision of tightly integrated navigation and positioning is significantly better than that of single GNSS PPK positioning models,especially in areas with large angular rate and attitude changes,the advantage of combined navigation and positioning accuracy is more significant. ②The tightly integrated navigation and positioning system has the highest accuracy in tracking all satellites,and the accuracy of shutting down the BeiBou satellite is equivalent to tracking only the GPS satellite. However,shutting down the GPS satellite results in significant loss of accuracy. The tight combination navigation positioning system has better PPK assisted positioning accuracy than RTX assisted positioning accuracy,but the RTX accuracy is better than 0.05 cm,which can meet the accuracy requirements of large-scale mapping. The results indicate that the use of PPK or RTX assisted tightly integrated inertial navigation systems can provide high-precision,continuous,reliable,and stable navigation and positioning data in complex situations.

tightly coupled combinationinertial navigation systemApplanix POS MVnavigation and positioning dataprecision analysis

冯国正、叶飞、孙振勇、费新龙、聂君伟

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长江水利委员会水文局长江上游水文水资源勘测局,重庆400020

武汉天宝耐特科技有限公司,湖北 武汉430043

紧组合 惯导系统 Applanix POS MV 导航定位数据 精度分析

国家重点研发计划重庆市自然科学基金长江水利委员会水文局科研项目重庆市2022年度技术创新与应用发展专项项目长江水利委员会水文局长江上游水文水资源勘测局科技创新奖励

2023YFC3209502CSTB2023NSCQ-LZX0089SWJ-24CJX18CSTB2022TIAD-KPX0132

2024

10.13474/j.cnki.11-2246.2024.0831

测绘通报
测绘出版社

测绘通报

CSTPCD北大核心
影响因子：1.027
ISSN：0494-0911
年,卷(期)：2024.(8)