雷达科学与技术2026，Vol.24Issue(3)：320-331,342,13.DOI:10.3969/j.issn.1672-2337.2026.03.009
多旋翼无人机FMCW SAR高频振动误差补偿方法
A High-Frequency Vibration Error Compensation Approach for Multirotor UAV FMCW SAR
摘要
Abstract
Multirotor unmanned aerial vehicle(UAV)synthetic aperture radar(SAR)systems are prone to high-fre-quency vibration errors caused by rotor rotation during flight,which introduces paired false targets in the imaging results and significantly degrades image quality.To address this issue,a vibration error compensation method is proposed spe-cifically for frequency modulated continuous wave(FMCW)SAR systems equipped on multirotor UAVs.First,a high-fre-quency vibration error model and the corresponding echo signal model are established for the FMCW SAR system,and the mechanism through which such vibrations affect imaging quality is systematically analyzed.Subsequently,a compen-sation method based on complementary ensemble empirical mode decomposition(CEEMD)is proposed.Vibration com-ponents are accurately extracted using an improved CEEMD method.Then,an optimal estimation model based on the minimum mean squared error(MMSE)criterion is constructed to accurately determine the vibration parameters.Finally,a phase compensation function is constructed,and all vibration components are iteratively compensated in sequence,leading to the effective suppression of multi-component high-frequency vibration errors.The effectiveness of the pro-posed method is validated through simulations under complex motion error conditions.关键词
合成孔径雷达/高频振动误差补偿/调频连续波/多旋翼无人机/互补集总经验模态分解Key words
synthetic aperture radar(SAR)/high-frequency vibration errors/frequency modulated continuous wave(FMCW)/multirotor unmanned aerial vehicle/complementary ensemble empirical mode decomposition(CEEMD)分类
信息技术与安全科学引用本文复制引用
孙天澳,周鹏,张清泉,刘建彬..多旋翼无人机FMCW SAR高频振动误差补偿方法[J].雷达科学与技术,2026,24(3):320-331,342,13.基金项目
青岛市科技惠民示范专项项目(24-1-8-cspz-5-nsh) （24-1-8-cspz-5-nsh）
国家自然科学基金区域创新发展联合基金重点支持项目(U22A20586) （U22A20586）
中国石油大学(华东)校级教学改革项目(CM2024045) （华东）
中国石油大学(华东)研究生教学改革项目(YJG2024050) （华东）
