根据载机对海上舰艇目标无源三维交叉定位原理和过程,研究了载机对海上舰艇无源三维交叉定位模糊区问题,重点分析了将三维交叉定位简化为平面交叉定位问题时带来的模糊区计算误差。仿真结果表明,将三维交叉定位模糊区进行简化后会带来一定的计算误差,特别是当目标舰艇位置靠近载机基线及延长线时,误差会显著越大。研究成果对载机对海无源定位中的运用和定位精度分析具有一定借鉴意义。

Based on principles and process of aircraft's location on ship target, 3D beam-crossing ambiguous-area was studied in this paper. Calculation error of ambiguous-area was analyzed, which is produced by simply 3D beam-crossing location to 2D beam-crossing location. Simulation results show that the calculation error increases significantly when the target is close to baseline and extended line. These results can be referred by operation and error analysis of airborne passive location sensor on ship target.