Title :
Measuring Error of 5-Station TDOA Positioning System for Moving-Target Alone Straight Line
Author_Institution :
China Nat. Aeronaut. Radio Electron. Res. Inst., Shanghai, China
Abstract :
Based on the least square method and error estimation theory, the planar positioning error of 5-station TDOA positioning system with a redundant measuring station was studied by numerical computation method in three-dimensional space. Result obtained is different from that based on probability positioning algorithm. The comparison compared with the 4-station TOA positioning system indicates that the measuring error of variable nearly parallel to coordinate axis can be significantly reduced by increasing the quantity of measuring station providing that the target moves alone straight line in horizontal.
Keywords :
least squares approximations; object detection; position measurement; time-of-arrival estimation; TDOA positioning system; error estimation theory; least square method; measuring error; moving-target; numerical computation method; planar positioning error; Computer errors; Coordinate measuring machines; Equations; Error analysis; Extraterrestrial measurements; Information technology; Least squares methods; Length measurement; Position measurement; Redundancy; TDOA; error estimation; least square method; multi-station positioning; passive positioning;
Conference_Titel :
Information Technology and Applications, 2009. IFITA '09. International Forum on
Conference_Location :
Chengdu
Print_ISBN :
978-0-7695-3600-2
DOI :
10.1109/IFITA.2009.526
