Method of determining the position of multiple targets using bearing-only sensors

摘要: The positions of a plurality targets (26) are located using three or more sensors (20, 22, 24) such as radars which sense only the bearing angle targets. intersecting lines (30) form triangles (28) representing both true and false (28). target separated from by analyzing size position each triangle. Bearing data defining is first ordered then sequentially examined in manner that group eliminated consideration. remaining processed through coarse fine gates to eliminate second third groups A fourth global maximum likelihood procedure, function maximized use discrete optimization techniques.