| The location information for joint command in regional combat operations has significant meaning.Using passive location technology to locate the radiation source of either one’s own or enemy’s position is one of the most important methods to obtain location information in modern warfare.In order to effectively obtain the location information of the combatants when the satellite-based location signals are interfered in the battlefield of regional operations,the thesis researches on the bistatic locating problem and multiple locating problem in the target area,relying on radio communication equipment in typical team operations.The research contents are shown as follows.(1)For the bistatic locating problem,we research on a joint location technology of Angle of Arrival(AOA)and Time of Arrival(TOA)based on the theoretical analysis and simulation experiments,which is proposed to solve the problem of location blind spots in a single location system.For the multiple locating problem,a Double Orthogonal Matching Pursuit(DOMP)algorithm is proposed,which improves the recovery success rate of the algorithm effectively.(2)An improved p-norm sparse recovery technique based on orthogonal acceleration is studied,which improves the operation speed of the algorithm effectively.A dynamic meshing algorithm based on iterative backtracking is proposed,which achieves the high location accuracy for the targets on the non-mesh nodes.Consequently,the thesis researches the passive location problems of individual radio station communication signals,breaking through the joint location technology of AOA and TOA,the DOMP-based sparse recovery technology,the improved p-norm sparse recovery technology based on orthogonal acceleration and dynamic meshing technology with iterative backtracking.The validity and correctness of the proposed algorithm have been verified by theoretical analysis and simulation experiments.The research results have strong theoretical significance for urgent military requirements. |
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