[1] S. J. Ostro. Planetary radar astronomy. Rev. Mod. Phys., 65, 1235(1993).

[2] Y. T. Chan, F. L. Jardine. Target localization and tracking from Doppler-shift measurements. IEEE J. Ocean. Eng., 15, 251-257(1990).

[3] J. N. J. Cafarelli. Doppler frequency position fixing method(1961).

[4] S. C. Jasper. Method of Doppler searching in a digital GPS receiver(1987).

[5] Y. D. Zhao et al. Detection of moving targets based on Doppler spectrum analysis technique for passive coherent radar. J. Rad., 2, 247-256(2013).

[6] Z. Y. Guo et al. Research advances on the rotational Doppler effect of vortex electromagnetic waves. J. Rad., 10, 725-739(2021).

[7] L. Allen et al. Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes. Phys. Rev. A., 45, 8185-8189(1992).

[8] N. Gerard. Doppler effect induced by rotating lenses. Opt. Commun., 132, 8-14(1996).

[9] M. P. J. Lavery et al. Detection of a spinning object using light’s orbital angular momentum. Science, 341, 537-540(2013).

[10] H. Zhou et al. Theoretical analysis and experimental verification on optical rotational Doppler effect. Opt. Express, 24, 10050-10056(2016).

[11] Y. W. Zhai et al. Detection of angular acceleration based on optical rotational Doppler effect. Opt. Express, 27, 15518-15527(2019).

[12] Y. W. Zhai et al. Remote detection of a rotator based on rotational Doppler effect. Appl. Phys. Express, 13, 022012(2020).

[13] S. Qiu et al. Spinning object detection based on perfect optical vortex. Opt. Lasers Eng., 124, 105842(2020).

[14] K. Liu et al. Microwave imaging of spinning object using orbital angular momentum. J. Appl. Phys., 122, 124903(2017).

[15] Z. Zhou et al. Rotational Doppler resolution of spinning target detection based on OAM beams. IEEE Sens. Lett., 3, 18509557(2019).

[16] C. Brousseau, K. Mahdjoubi, O. Emile. Measurement of the rotational sense and velocity of an object using OAM wave in the radio-frequency band. Electron. Lett., 55, 709-711(2019).

[17] K. Miyamoto et al. Direct observation of the topological charge of a terahertz vortex beam generated by a Tsurupica spiral phase plate. Appl. Phys. Lett., 104, 261104(2014).

[18] X. F. Zang et al. Metasurfaces for manipulating terahertz waves. Light: Adv. Manuf., 2, 148-172(2021).

[19] J. W. He et al. Generation and evolution of the terahertz vortex beam. Opt. Express, 21, 20230-20239(2013).

[20] A. I. Hernandez-Serrano, E. Castro-Camus, D. Lopez-Mago. q-plate for the generation of terahertz cylindrical vector beams fabricated by 3D printing. J. Infrared Millimeter Terahertz Waves, 38, 938-944(2017).

[21] S. J. Ge et al. Terahertz vortex beam generator based on a photopatterned large birefringence liquid crystal. Opt. Express, 25, 12349-12356(2017).

[22] Z. W. Xie et al. Spatial terahertz modulator. Sci. Rep., 3, 3347(2013).

[23] S. Janne et al. Holograms for shaping radio-wave fields. J. Opt., 4, S161-S167(2002).

[24] V. C. Chen et al. Micro-Doppler effect in radar-phenomenon, model and simulation study. IEEE Trans. Aerosp. Electron. Syst., 42, 2-21(2006).

[25] V. C. Chen. Micro-Doppler effect of micro-motion dynamics: a review. Proc. SPIE, 5102, 240-249(2003).

[26] V. C. Chen, F. Y. Li. Analysis of micro-Doppler signatures. IEE Proc. Radar Sonar Navig., 150, 271-276(2003).

[27] V. C. Chen, I. Ebrary. The Micro-Doppler Effect in Radar(2011).

[28] P. A. George et al. Integrated waveguide-coupled terahertz microcavity resonators. Appl. Phys. Lett., 91, 191122(2007).

[29] Z. W. Wang et al. On-chip single-mode high-Q terahertz whispering gallery mode resonator. Opt. Lett., 44, 2835-2838(2019).

[30] J. Y. Xie et al. Terahertz integrated device: high-Q silicon dielectric resonators. Opt. Mater. Express, 8, 50-58(2018).

[31] J. Y. Xie et al. Terahertz-frequency temporal differentiator enabled by a high-Q resonator. Opt. Express, 28, 7898-7905(2020).

[32] X. L. Cai et al. Integrated compact optical vortex beam emitters. Science, 338, 363-366(2012).

[33] Z. K. Shao et al. Spin-orbit interaction of light induced by transverse spin angular momentum engineering. Nat. Commun., 9, 926(2018).

[34] X. K. Wang et al. Longitudinal field characterization of converging terahertz vortices with linear and circular polarizations. Opt. Express, 24, 7178-7190(2016).

[35] G. B. Wu et al. Orbital angular momentum (OAM) mode-reconfigurable discrete dielectric lens operating at 300 GHz. IEEE Trans. Terahertz Sci. Technol., 10, 480-489(2020).

[36] R. Imai et al. Generation of broadband terahertz vortex beams. Opt. Lett., 39, 3714-3717(2014).

[37] B. A. Knyazev et al. Generation of terahertz surface plasmon polaritons using nondiffractive Bessel beams with orbital angular momentum. Phys. Rev. Lett., 115, 163901(2015).

[38] V. Boris et al. Fabrication and characterization of diffractive phase plates for forming high-power terahertz vortex beams using free electron laser radiation. Opt. Quantum Electron., 48, 223(2016).

[39] S. J. Ge et al. Generating, separating and polarizing terahertz vortex beams via liquid crystals with gradient-rotation directors. Crystals, 7, 314(2017).

[40] P. Jan et al. Chiral nanophotonic waveguide interface based on spin-orbit interaction of light. Science, 346, 67-71(2014).

[41] M. Born, E. Wolf. Principles of Optics(1980).

[42] V. G. Farafonov, V. B. Il’m. Rayleigh approximation for light scattering at parallelepipeds. J. Opt. Technol., 81, 375-381(2014).