座底式长基线水声跟踪系统校阵方法研究

为了解决座底式长基线水声跟踪系统的高效校阵问题,结合工程项目实际提出一种智能化分组并行校阵方法。该方法利用水下基阵布阵施工时获得的水声及差分全球定位系统(Differential Global Positioning System,DGPS)测量数据为基准,在校阵试验中采用多个水下基阵分组并行校阵的快捷方式,根据自动反馈的测量数据进行校阵误差收敛测量,当满足事先设定的校准误差后,获得水下基阵的精确位置信息,同时完成多个水下基阵的阵型校准。最后,在某水域采用跑船试验的方式进行验证。长基线系统测量的船只航行轨迹与DGPS轨迹重合性好,证明该方法具有智能化程度高、测量精度高、测阵效率及经济性好等优点,具有较高的军事及民用价值。

The array calibration method for bottom-mounted underwater long baseline acoustic tracking system

To solve the problem on efficient array calibration of bottom-mounted underwater long baseline acoustic tracking system, a packet parallel array calibration method derived from actual engineer project is proposed. The method utilizes the measurement data of sonar and DGPS obtained at the time of implementing the array layout as a benchmark, adopts a shortcut manner of dividing multi-arrays into packets for simultaneous calibration test, and makes array calibration error convergence measurement according to the automatic feedback measured data. As long as meeting the pre-set calibration error, the precise location information of underwater base array is obtained, and then the underwater multi array''s attitude calibration is completed. Finally, the method is verified by ship-running tests, the trajectory measured by the Long Baseline acoustic tracking system coincides well with the one measured by DGPS. It''s proved that this method has advantage in high degree of intelligence, high precision, high array measuring efficiency and cost saving, with very high military and civil values.