液晶与显示2016，Vol.31Issue(9)：902-912,11.DOI:10.3788/YJYXS20163109.0902
基于多台北斗接收机的测姿精度对目标定位精度影响分析
Impact analysis of attitude determination accuracy to target localization accuracy on Multi-BD receivers
摘要
Abstract
Aircraft attitude measurement is an important phase in the target location of UAV (Un-manned Aerial Vehicle,UAV)system.This paper intends to achieve attitude information by using multi-BDS (BeiDou navigation positioning system,BDS)receiver antenna.Furthermore,the influence of the attitude measurement accuracy on the positioning precision of airborne optoelectronics platform is analyzed.To solve these problems,a target location system model of airborne optoelectronics plat-form is established.After analyzing and calculating the orientation error with Mont Carlo method,the errors are compared among the cases including the airborne attitude measuring error within 0.05°~1°, the positioning precision of vertical view and strabismus in flying height of 1 000 ~ 8 000 meters.The experimental results show that elevation error of vertical view is about 20m,and planar location error is 23 ~ 65 m.Geodetic height error of strabismus positioning (-60°oblique)is about 20 ~ 30 m,and planar location error is 24 ~ 71 m.In addition,the effects of the antenna orientation and length of baseline on the positioning precision are analyzed.Some conclusions can be drawn by simulation.Tar-get location errors relate to the attitude angle error of the aircraft,the error of BDS,azimuth angle er-ror of optoelectronic platform,high and low angle measurement error,and the distance between the target and the aircraft.Moreover,it can be concluded that the high and low angle of optoelectronic plat-form is smaller when the flying height is higher.The positioning error is larger when slant distance is bigger.The attitude measurement accuracy is greater when the baseline is longer.The error of rolling angle is the minimum when the baseline is vertical.关键词
北斗接收天线/姿态精度/蒙特卡洛法/目标定位误差Key words
BDS receivers/Monte Carlo method/accuracy of the attitude determination/error of tar-get localization分类
航空航天引用本文复制引用
蔡明兵,王超,刘晶红,周前飞,宋悦铭..基于多台北斗接收机的测姿精度对目标定位精度影响分析[J].液晶与显示,2016,31(9):902-912,11.基金项目
吉林省重大科技攻关项目(No．11ZDGG001)Supported by Jilin Provincial Major Scientific Research Project of China(No．11ZDGG001) （No．11ZDGG001）
