CAJ | 학술논문

旋转调制技术通过转位机构带动惯性测量单元按照设计好的转位方案旋转，将器件误差对导航精度的影响调制平均掉，从而提高系统长航时导航精度。该技术在国外船用领域被广泛应用，也是惯性技术领域的热点研究方向之一。本文研究旋转调制技术的本质，即旋转式惯导系统的误差传播特性，从理论上分析旋转式惯导系统单通道误差传播机理，研究器件误差经调制后的传播形式，阐释旋转调制技术提高系统精度的原因。通过仿真验证了惯性器件常值误差经旋转调制后消弱了对导航精度的影响程度。
선전조제기술통과전위궤구대동관성측량단원안조설계호적전위방안선전，장기건오차대도항정도적영향조제평균도，종이제고계통장항시도항정도。해기술재국외선용영역피엄범응용，야시관성기술영역적열점연구방향지일。본문연구선전조제기술적본질，즉선전식관도계통적오차전파특성，종이론상분석선전식관도계통단통도오차전파궤리，연구기건오차경조제후적전파형식，천석선전조제기술제고계통정도적원인。통과방진험증료관성기건상치오차경선전조제후소약료대도항정도적영향정도。
Rotation modulation technology drive the inertial measurement unit rotating according to rotation scheme designed to modulate the influence of navigation accuracy by sensor errors, so the system long-time navigation accuracy is improved. This technology is applied in ships abroad, and is a hot research direction of inertial technology domain. In this paper, the error propagation characteristic which is the nature of rotation modulation technology after modulating is studied. Through theoretical analyzing, single channel error propagation mechanism is studied and error propagation shape is researched after modulating, thus, the reason of navigation accuracy improving by rotation modulation technology is explained. Lastly, simulation is carry out to verifying the influence to navigation accuracy by inertial sensor constant errors after modulating is weakened.