Hong-Zhan QIAO, Kai ZHONG, Jie SHI, Yang LIU, Ke-Fei LIU, De-Gang XU, Jian-Quan YAO. Large-dynamic-range radar-cross-section measurement in the terahertz band[J]. Journal of Infrared and Millimeter Waves, 2021, 40(3): 341
- Journal of Infrared and Millimeter Waves
- Vol. 40, Issue 3, 341 (2021)
Fig. 1. Terahertz RCS measurement system，note： BS is a beam splitter； M is a gold-coated plane reflector； P1， P2 and P3 are off-axis parabolic mirrors
Fig. 2. Sample pictures（a） Smooth metal ball，（b） Smooth metal cylinder，（c） Smooth metal plate，（d） Smooth metal warhead model
Fig. 3. RCS measurement results of the smooth metal sphere and cylinder calibrators (a) Smooth metal sphere, (b) Smooth metal cylinder
Fig. 4. Measurement results of scattering signal of aluminum alloy plate (a) Direct measurement, (b) Measurement with an attenuator (measured data divided by the attenuation coefficient)
Fig. 5. Measurement of warhead scattering characteristics (a) Scattering signal with sphere calibration, (b) Scattering signal with plate calibration, (c) RCS results of the warhead by combining subsection processed data
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