多波束和机载激光测深位置归算及载体姿态影响研究

我国继研制成功多波束测深系统后，正在着手研制机载激光测深系统。本文根据以上两种测深新技术的特点，全面推导了条带式深度测量位置归算的严密计算公式及其相应的精度估算公式，在推演过程中，充分顾及了海洋测量的动态效应即载体姿态的影响。本文最后还结合我国自行研制的实际系统参数数据，对位置归算改正的量值大小进行了数值计算和精度评定。

The Influence of Carrier's Attitude and the Position Reduction in Multibeam Echosounding and Airborne Laser Depth Sounding

Having finished the development of multibeam echosounding system, China is making a great effort to develop airborne laser depth sounding system. According to the principle of the two kinds of sounding system mentioned above, a series of position reduction formulas and their error equations are derived in this paper. The dynamic effect of marine sounding, i.e., the influence of carrier's attitude, is taken into full account in derivation of the equations. Finally, the real parameters of the two sounding systems developed by China are used to calculate the position reductions and their accuracies in different heading angles. The results show that the accuracies of depths and positions in multibeam echosounding and airborne laser depth sounding are dependent not only on their own sensors but also on the additional sensors.