舰载机在着舰过程中需要清楚舰载机实时的真实空间位置。针对激光测距机距离交汇定位的方法，对该定位方法进行误差分析。误差来源分为两类，一类是激光测距机的测距误差，另一类是距离交汇定位方法的误差。以激光测距的原理为基础，分析影响激光测距的误差源并给出误差修正公式。以距离交汇定位方法模型为基础，分析各误差产生原因并给出用该方法解算时实际值与理论值的偏差。分析结果表明，当舰载机距离航母1 km时，定位误差在分米级，能够满足定位精度的要求。

The true position of the shipboard aircraft should be known clearly in real time when landing.To the distance intersection positioning method of laser range finders,analysis is made to the positioning error.There are two error sources,one is the positioning error of laser range finder,and the other is from the distance intersection positioning method.The error of laser ranging is analyzed and the correcting formula is given based on the principle of laser ranging.Based on model of the distance intersection positioning method,the error sources of the method are found out and the deviation is given.Finally the prospect of positioning method is summed up combined with the error analysis.The analysis indicates that:the error is at decimeter level when the aircraft is at 1 km apart from the carrier,which can satisfy the requirement of the accuracy.