In multiple platform electronic reconnaissance system, Time Difference Of Arrival (TDOA) of the pulse signal received by multiple stations can be used for signal sorting and positioning. However, when multiple emitter signals with similar parameters are mixed together in time and frequency domain, a lot of false TDOA information will be obtained by stations. Combined with Position Information Field (PIF) location method, a signal sorting and positioning method for similar radiation sources based on TDOA is proposed. TDOA information about similar radiation sources is firstly extracted from the pulses of all stations and TDOA window information by matching TDOA and multi-parameter in the proposed method. Then, multi-target’s number and each target’s position are obtained by position information field for target location method based on the TDOA information. Finally, positioning results are used to determine the real TDOA, eliminate the false TDOA, and complete signal sorting and target accurate positioning. Simulation results demonstrate the effectiveness and the practicality of this method.
马贤同,罗景青,孟祥豪. 基于时差的同类辐射源信号分选定位方法[J]. 电子与信息学报, 2015, 37(10): 2363-2368.
Ma Xian-tong, Luo Jing-qing, Meng Xiang-hao. Signal Sorting and Positioning Method for Similar Radiation Sources Based on Time Difference of Arrival. JEIT, 2015, 37(10): 2363-2368.
Guo F C, Fan Y, Zhou Y Y, et al.. Localization Principles in Space Electronic Reconnaissance[M]. Beijing: National Defense Industry Press, 2012: 81-86.
[2]
Bindhu S K H and Murali Krishna P P. Geolocation using TDOA and FDOA measurements in sensor networks using non-linear elements[J]. International Journal of Engineering Trends and Technology, 2014, 14(1): 35-39.
Yuan G and Chen J. A clustering detection algorithm of stationary target for passive time difference location system[J]. Journal of Electronics & Information Technology, 2010, 32(3): 728-731.
[4]
Kay S and Vankayalapati N. Improvement of TDOA position fixing using the likelihood curvature[J]. IEEE Transactions on Signal Processing, 2013, 61(8): 1910-1914.
[5]
Xu B, Sun G D, Ran Y, et al.. High-accuracy TDOA-based localization without time synchronization[J]. IEEE Transactions on Parallel and Distributed Systems, 2013, 24(8): 1567-1576.
Ma S, Wu H B, Liu Z, et al.. Method for emitter TDOA sorting based on recursive extended histogram[J]. Journal of National University of Defense Technology, 2012, 34(5): 83-89.
Ren W J, Hu D H, Ding C B, et al.. Eliminating TDOA location ambiguity of high PRF signal based on direction information acquired[J]. Journal of Electronics & Information Technology, 2010, 32(12): 3004-3007.
Ren W J, Hu D H, and Ding C B. New method for TDOA sorting and pairing using TDOAs’ correlation[J]. Journal of Xidian University, 2011, 38(6): 89-96.
[9]
Nosal E M. Methods for tracking multiple marine mammals with wide-baseline passive acoustic arrays[J]. Journal of the Acoustical Society of America, 2013, 134(3): 2383-2392.
Li Y D and Xiao L Z. A method of signal sorting for radar signal of pulse repetition interval complex modulated[J]. Journal of Electronics & Information Technology, 2013, 35(10): 2493-2497.
[12]
Fan Y H, Ji X L, Yan J, et al.. Analyses of jam effect for radar decoy in endgame of air to air missile[J]. Scientific Journal of Control Engineering, 2014, 3(5): 320-324.
[13]
罗景青. 目标位置信息场分析定位法[J]. 电子工程学院学报, 2012, 31(2): 1-4.
Luo J Q. Targets localization by information field analysis[J]. Journal of Electronic Engineering Institute, 2012, 31(2): 1-4.
[14]
Luo J Q, Ma X T, Wang J G, et al.. Location by position observing information tolerance synthesize[C]. 2012 IET International Conference on Information Science and Control Engineering, 2012, 1247-1250.
Ma X T, Luo J Q, and Zhang K. A location method for multi- target by position information field based on DOA[J]. Signal Processing, 2013, 29(1): 121-126.