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Article

17 Citations

4,054 Views

12 Pages

A Novel Scheme for MIMO-SAR Systems Using Rotational Orbital Angular Momentum

Xiangxi Bu,
Zhuo Zhang,
Xingdong Liang,
Longyong Chen,
Haibo Tang,
Zheng Zeng and
Jie Wang

Sensors2018, 18(10), 3511;https://doi.org/10.3390/s18103511

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18 October 2018

The vortex electromagnetic (EM) wave with orbital angular momentum (OAM) brings a new degree of freedom for synthetic aperture radar (SAR) imaging, although to date, its application to multi-input multi-output (MIMO) SAR has not yet been widely repor...

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Communication

7 Citations

2,782 Views

10 Pages

Detection of a Spinning Object at Different Beam Sizes Based on the Optical Rotational Doppler Effect

Song Qiu,
Ruoyu Tang,
Xiangyang Zhu,
Tong Liu and
Yuan Ren

Photonics2022, 9(8), 517;https://doi.org/10.3390/photonics9080517

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25 July 2022

The rotational Doppler effect (RDE), as a counterpart of the conventional well-known linear Doppler effect in the rotating frame, has attracted increasing attention in recent years for rotating object detection. However, the effect of the beam size o...

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Article

1 Citations

645 Views

9 Pages

Rotational Doppler Signal Classification Based on Support Vector Machine

Song Qiu,
Jin Zheng and
Minghui Xiong

Photonics2025, 12(4), 380;https://doi.org/10.3390/photonics12040380

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14 April 2025

The rotational Doppler effect (RDE) has been playing a vital role in the detection of rotational motion in recent years. However, the results obtained from this detection method are easily influenced by the detection conditions. It means that the cha...

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