论文部分内容阅读
针对我国现有测量船单站REA测量体制精度相对较低的问题,提出了基于光电经纬仪的海上角度交会测量方法。介绍了角度交会测量原理和设备布站原则,构建了AE-AE异面交会测量系统,设计了基于MLE(Maximum Likelihood Estimation)算法的海上角度交会测量算法和船摇修正方法,仿真分析了船体姿态测量误差、设备测角误差以及站址定位误差等的影响。仿真结果表明,站址测量误差是海上角度交会测量的最主要误差源,船体姿态测量误差和设备测角误差对海上角度交会测量精度有一定的影响,当船体水平姿态测量误差优于20″、航向测量误差优于30″、设备测角误差优于20″、站址测量误差优于1 m时,海上角度交会测量精度可达1 m。该法解决了动态条件下的飞行目标高精度测量技术难题,为后续工程设计奠定了基础。
Aiming at the problem that the accuracy of REA measurement system of single survey station in our country is relatively low, a method based on photoelectric theodolite is proposed. This paper introduces the principle of angle intersection measurement and the principle of equipment deployment, constructs AE-AE disparate intersection measurement system, designs the algorithm of sea angle intersection measurement and ship roll correction based on MLE (Maximum Likelihood Estimation) algorithm, and simulates the hull attitude Measurement error, angle measurement error and site positioning error and other effects. The simulation results show that the measurement error of the site is the main error source of the cross-sea measurement. The attitude error of the hull and the measurement error of the equipment have certain influence on the accuracy of the cross-sea measurement. When the measurement error of the horizontal attitude of the hull is better than 20 “ The error of heading measurement is better than 30 ”, the angle error of the equipment is better than 20", and when the measurement error of the site is better than 1 m, the accuracy of the sea angle intersection measurement can reach 1 m. This method solves the problem of high precision measurement of flying target under dynamic conditions Technical problems for the follow-up engineering laid the foundation for the design.