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Detection accuracy of target accelerations based on vortex electromagnetic wave in keyhole space

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The influence of the longitudinal acceleration and the angular acceleration of detecting target based on vortex elec-tromagnetic waves in keyhole space are analyzed.The spectrum spreads of different orbital angular momentum(OAM)modes in different non-line-of-sight situations are simulated.The errors of target accelerations in detection are calculated and compared based on the OAM spectra spreading by using two combinations of composite OAM modes in the keyhole space.According to the research,the effects about spectrum spreads of higher OAM modes are more obvious.The error in detection is mainly affected by OAM spectrum spreading,which can be reduced by reasonably using different combinations of OAM modes in different practical situations.The above results provide a reference idea for investigating keyhole effect when vortex electromagnetic wave is used to detect accelerations.

vortex electromagnetic wavesdetect accelerationskeyhole spacespectrum spread

郭凯、雷爽、雷艺、周红平、郭忠义

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School of Computer and Information,Hefei University of Technology,Hefei 230009,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of China

1180407361775050

2024

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子:0.995
ISSN:1674-1056
年,卷(期):2024.33(2)
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