水下目标的无源定位和融合技术研究

Study on Underwater Maneuvering Target Location and Data Fusion Technology

针对水下机动目标的无源定位和跟踪问题,先运用测向定位和时差定位相结合的思想,给出来自水下机动声源目标的定位解;然后在此基础上,将多部被动声呐在各个状态时刻所定位的含噪声数据视为一冲击扰动序列,对其应用缓冲算子作用,以弱化其随机性。最后,再对缓冲算子作用后的扰动序列进一步应用数据融合技术来改善和提高定位系统的跟踪精度。仿真结果表明,该方法是有效、可行的。

A new solution to the problem of passive location and tracking underwater maneuvering targets is introduced in this paper. First of all, we combine the bearing location and time difference location together to get the locating solution of underwater maneuvering targets. To attenuate its randomness, we take the noisy data that multi-passive-sonar locates as a shock disturbed sequence and use the buffering operator upon it. Finally, the technique of data fusion is applied upon its result to further improve the tracking precision of the system. Our experiment shows that the solution is effective and feasible.