太原理工大学学报2017，Vol.48Issue(6)：953-958,6.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.06.013
零相位差-测向的随动二分法定位
The Servo Bisector Location Based on Direction Finding of Zero Phase Difference
摘要
Abstract
The measurement error amplification problem,which is caused by the hyperbolic nonlinearity existing in the location model based on signal arrival time difference (Time Difference of Arrival,TDOA)for radio frequency positive location,can only be limitedly improved by opti-mization algorithm.Taking this into account,a servo bisector location method based on direction finding of zero phase difference was proposed.In this method,the measurement position with minimum error is obtained by controlling the motion of measuring antenna.On this basis,the AD8302 phase difference measurement accuracy is improved by the cable delay compensation method,and position disturbance is applied to antenna to obtain accurate angle to eliminate sys-tem measurement error.The effect of parametric variance on the geometric accuracy factor (GDOP)of this model and orthogonal TDOA model was analyzed and compared.Experiments show that this positioning method increases position range and improves position accuracy com-pared with conventional TDOA positioning method.关键词
TDOA双曲线非线性/误差分析/电缆线补偿/二分法定位/随动系统Key words
the hyperbolic nonlinear of TDOA/error analysis/cable delay compensation/bi-sector location/servo system分类
信息技术与安全科学引用本文复制引用
王志芳,蒋文强,詹振海,韩念琛..零相位差-测向的随动二分法定位[J].太原理工大学学报,2017,48(6):953-958,6.基金项目
高效环保炼焦技术开发与合作项目(MJH2015-04) （MJH2015-04）
