基于目标舷角分布范围的拖线阵声纳左右舷分辨推理模型

A Reasoning Model for Towered Linear Arrayed Sonar's Port/Starboard Discrimination Based on the Range of Target's Bearing

被动拖曳线列阵声纳存在目标左右舷模糊的问题,现有分辨模型可能导致误判。为克服现有模型的误判问题,综合考虑目标距离、初始舷角以及本舰机动角度等重要影响因素,建立了本舰转向完成重新测得目标时目标舷角(θ1)分布范围的解算模型。基于该模型得到目标分别位于本舰左舷或右舷时目标舷角对应的分布区间1和区间2。根据区间1和区间2的不同组合以及θ1值落在区间1和区间2的不同情形,建立了拖曳线列阵声纳左右舷的新模型。最后,实例验证了模型的适用性和正确性。

Passive towered linear arrayed sonar exist a problem named port/starboard ambiguity, and current discrimination model may give a fault result. In order to handle that problem, a model is built to calculate target＇s bearing（ θ1 ） range when mother ship＇s maneuvering completed, in which some important influence factors such as target＇s distance, initial target＇s bearing, mother ship＇s maneuver angle are synthetically taken into account. Then two range of target＇s bearing can be calculated named range One and range Two, which respective based on the assumption that target is in Port or Starboard. A new model is established for towered linear arrayed sonar＇s port/starboard discrimination ,which based on the combination of range One and range Two, as well as the situation whether θ1 belongs to range One or range One. Finally,its validity and its appli cability of the model is validated by an example.