辽宁工程技术大学学报（自然科学版）2024，Vol.43Issue(1)：54-61,8.DOI:10.11956/j.issn.1008-0562.2024.01.007
顾及运动特征的轨道不平顺测量精度分析
Precision analysis of track irregularity measurement considering motion characteristics
摘要
Abstract
The influence of the standard deviation of the motion characteristic equation and the measurement frequency on the measurement accuracy of the track irregularity is studied in depth.The model is established by combining the GNSS/INS and NHC algorithms,and the covariance method is used for quantitative analysis.Through simulation experiments,it is verified that the addition of motion characteristic equation improves the measurement accuracy of track irregularity.When the standard deviation of the motion characteristic equation is constant,the accuracy increases with the increase of frequency.When the frequency is constant,the smaller the standard deviation of the motion characteristic equation,the higher the orbit measurement accuracy.Given the appropriate standard deviation of the motion characteristic equation can meet the requirements of track irregularity measurement accuracy.The field experimental results are basically consistent with the simulation results,which proves the correctness of the proposed method.The research conclusions provide a reference for improving the measurement accuracy of track irregularity.关键词
非完整性约束/轨道不平顺/GNSS/INS/卡尔曼滤波/标准差Key words
non-complete constraint/track irregularity/GNSS/INS/Kalman filter/standard deviation分类
天文与地球科学引用本文复制引用
李松伟,乔书波,马洪磊,杨显赐,彭华东..顾及运动特征的轨道不平顺测量精度分析[J].辽宁工程技术大学学报（自然科学版）,2024,43(1):54-61,8.基金项目
国家自然科学基金项目(42074010) （42074010）
