Source localization and calibration using TDOA and FDOA measurements in the presence of sensor location uncertainty

作     者：LI JinZhou GUO FuCheng JIANG WenLi 

作者机构：School of Electronics Science and Engineering National University of Defense Technology 

出 版 物：《Science China(Information Sciences)》 (中国科学:信息科学(英文版))

年 卷 期：2014年第57卷第4期

页      面：156-167页

核心收录：

学科分类：0810[工学-信息与通信工程] 0711[理学-系统科学] 0808[工学-电气工程] 07[理学] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported in part by National High-tech R&D Program of China(863 Program)(Grant No.2011AA7072043) National Defense key Laboratory Foundation of China(Grant No.9140C860304) Fund of Innovation,Graduate School of National University of Defense Technology(Grant No.B120406) financial support from China Scholarship Council 

主　　题：source localization calibration time difference of arrival(TDOA) frequency difference of arrival(FDOA) sensor location uncertainty Cram′er-Rao lower bound(CRLB) 

摘      要：Source localization accuracy is very sensitive to sensor location *** paper performs analysis and develops a solution for locating a moving source using time difference of arrival(TDOA)and frequency difference of arrival(FDOA)measurements with the use of a calibration *** a Gaussian random signal model,we first derive the Cram′er-Rao lower bound(CRLB)for source location estimate in this *** we analyze the differential calibration technique which is commonly used in Global Positioning *** is indicated that the differential calibration cannot attain the CRLB accuracy in most cases.A closed-form solution is then proposed which takes a calibration emitter into account to reduce sensor location *** is shown analytically that under some mild approximations,our approach is able to reach the CRLB *** simulations are included to corroborate the theoretical developments.