Research on observability of two wire-guided torpedoes tracking system

Under special condition, the surface target could be attacked by submarine with two wire-guided torpedoes passive acoustic homing mode. When device detects bearing and transmit it back to through wire, a three-sensor detection system is constituted submarine’s integrated sonar torpedoes. Whether can effectively track related observability of system. Only satisfying observable conditions moving parameters calculated. For nonlinear characteristics tracking system, observation equation treated pseudo-linear processing, then linear analyzed using decision theorem for judging are given. Finally, correctness conclusion verified simulation.