针对基于卫星导航的着舰引导系统中载波相位一致性监测的需求，提出基于移动多站的载波相位虚拟观测生成方法。基于多站几何约束和着舰点位置坐标，内插计算着舰点双差观测和非差虚拟观测。通过分析影响载波相位虚拟精度的因素，表明舰船布站基线长度和姿态误差影响最大。最后，采用基于码-载波分离度检验和多虚拟站基线差分闭环检验方法对虚拟载波相位精度进行验证。仿真结果表明，在静态和动态条件下，使用虚拟后的载波相位能够支撑厘米级别差分定位。
As the requirement of MRCC of landing system on aircraft carrier based on carrier phase, the paper proposes a method to generate virtual carrier phase of multiple moving reference. Double-difference and non-difference observations are computed based on the geographic constraints and SRP position. The reference station baselines and the attitude observation errors have the most obvious influence on precision of virtual carrier phase. Method based on code-phase divergence checking and multiple virtual station baseline loop closure checking verifies the precision of virtual carrier phase. Simulation shows that on the static and dynamic conditions, centimeter level precision of RTK is supported with the virtual carrier phase.
2022,44(9): 126-132 收稿日期：2021-06-16
DOI：10.3404/j.issn.1672-7649.2022.09.026
分类号：U666
作者简介：杨少帅 (1988-) ，硕士，工程师，研究方向为相对导航、卫星导航等
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