acoustic passive localization的用法和样例：
- Aiming at improving the precision of acoustic passive localization by small size array, we first derived eqs. 1 through 3 to describe the relation between time delay and target location.
- Underwater acoustic passive localization
- Real-time Passive Localization by a Distributed Acoustic Array System
- A new passive localization estimate algorithm of Time Difference of Arrival (TDOA) to improve the accuracy of target localization was proposed, and the ambiguity and unsolvable problem were solved.