一种微小型等边三元阵的超短基线定位方法

An Ultra-short Baseline Location Method Based on Miniature Equilateral Ternary Array

针对小型载体对目标的浅水探测与定位实际需求,提出一种基于微小型等边三元阵的超短基线(Ultra-Short Baseline,USBL)定位方法。推导等边三元阵的定位原理,减少冗余阵元,保证了系统微小型化并避免了相位模糊,提出相干脉冲串复互相关测向算法。仿真结果证明了微小型等边三元阵对目标的定位性能。完成了一套微小型USBL定位系统,通过试验验证了该方法的正确性。

For the actual demand of detecting and locating target by small carriers in shallow water, an Ultra-Short Baseline(USBL)positioning method based on miniature equilateral ternary array is proposed. The positioning principle of equilateral ternary array is deduced, which reduces the redundant array elements, ensures the system miniaturization and avoids the phase ambiguity. A complex cross-correlation direction algorithm for coherent pulse sequence is proposed, simulation results show the positioning performance of the equilateral ternary array system. A miniature USBL positioning system is completed, and experiment results verify the effectiveness of the method.