| 摘要: |
| 针对高动态、强干扰环境下高精度组合导航应用需求，基于卫星导航环路误差模型，仿真分析了不同精度等级惯性辅助对环路的影响，量化分析了多普勒辅助对环路性能的提升效果；给出了多普勒辅助环路实现方法，结合卫星导航环路处理流程，提出了多普勒速度辅助环路实现方案；基于高动态轨迹进行了仿真实验，结果表明，基于多普勒辅助的惯性/卫星深组合技术能够有效提升环路高动态跟踪能力，在惯性信息辅助下，能够实现在25g/s加加速度、50g加速度高动态环境下对卫星信号的稳定跟踪。 |
| 关键词: 多普勒辅助 深组合 高动态 抗干扰 |
| DOI： |
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| 基金项目: |
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| Research on Deep Integration of Inertial/Satellite Technology Based on Doppler Assistance |
| XUE Tao,WANG Kang,GE Wen-tao,LI Wei,CHEN An-sheng |
| (Beijing Institute of Automatic Control Equipment) |
| Abstract: |
| To satisfy the requirements of the applications of the high-accuracy navigation，the effects of different accuracy classes of the inertial assistance to the loop were simulated，which based on the loop error model of the satellite navigation.It was quantifiably analysed that the upgrade effect of the loop which aided by Doppler.Also，the implement method of Doppler assistance was given and the scheme for implementation of the loop which aided by speed was proposed in conjunction with the process of the loop of the satellite navigation.Simulation experiment was proceeded which based on high dynamic trajectory.The results showed that the deep integration of inertial/satellite technology，which aided by Doppler，can effectively improve the capability of the loop on high dynamic tracking.And with the assistance of the inertial information，the signal of the satellite can be stably tracked in the high dynamic environment of 25g/s jerk and 50g acceleration. |
| Key words: Doppler assistance Deep integration High dynamic Anti-jamming |
