Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (9): 1954-1958.doi: 10.3969/j.issn.1001-506X.2011.09.08

• 电子技术 • 上一篇    下一篇


郭福成, 李腾   

  1. 国防科学技术大学电子科学与工程学院, 湖南 长沙 410073
  • 出版日期:2011-09-17 发布日期:2010-01-03

Passive localization method and its precision analysis based on TDOA and FDOA of fixed sensors

GUO Fu-cheng, LI Teng   

  1. School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Online:2011-09-17 Published:2010-01-03




To solve the problem of time difference of arrival (TDOA) and frequency difference of arrival (FDOA) localization by fixed sensors, a new localization solution based on weighted least square and a tracking method based on extended Kalman filter are proposed. The geometric distribution of precision (GDOP) of localization Cramer-Rao lower bound (CRLB) is analyzed under the circumstances which some measurements errors exist in TDOA and FDOA parameters. The tracking performance of multipletimes measurements is simulated and is compared with performance using TDOA only. Simulation results show that adding FDOA information is useful to improve tracking precision of moving emitters.