Passive Acoustic Sensor Network Time-Delay Probabilistic Localization Algorithm

Target signal is measured by acoustic sensor with the character of time-delay and bearing-only. The problem of target locating and time-delay registration can be solved by composing sensor network. A passive acoustic sensor network time-delay probabilistic localization algorithm is presented in this paper. Firstly, two sensor measures can be chosen that intersection angle is closed to 90° to get initial position of the target. Depend on the initial position, time-delay registration is processed, and then the measure data is refreshed which intersection angle is closed to 90° to get new initial position estimation of the target. Finally, the new initial position is utilized to get more accurate estimation by probabilistic localization algorithm. The simulation results show that the algorithm has the performance of low calculation, real-time and high precision.