Large-dynamic-range RCS measurements at high terahertz frequency range

Hongzhan Qiao; Kai Zhong; Jie Shi; Kefei Liu; Fangjie Li; Xianzhong Zhang; Degang Xu; Jianquan Yao

doi:10.1117/12.2573255

10 October 2020 Large-dynamic-range RCS measurements at high terahertz frequency range

Hongzhan Qiao, Kai Zhong, Jie Shi, Kefei Liu, Fangjie Li, Xianzhong Zhang, Degang Xu, Jianquan Yao

Proceedings Volume 11559, Infrared, Millimeter-Wave, and Terahertz Technologies VII; 115590F (2020) https://doi.org/10.1117/12.2573255
Event: SPIE/COS Photonics Asia, 2020, Online Only

Abstract

A segmented RCS data measurement and processing method was proposed. Attenuation elements were introduced to improve the measurable signal range of the measurement system, and the accuracy was improved by segmented calibration of data. Based on this method, the warhead model was measured in a large dynamic range up to 63 dB. A compact-field radar cross section (RCS) measurement system applicable in the high-frequency terahertz range was built based on a seed-injected terahertz parametric generator (ips-TPG). The reliability of the system was verified by taking smooth stainless-steel spheres as the standard calibration objects and the RCS measurement of common target was performed at a high frequency point at 5 THz. The error between the measured and theoretical results was less than 4 dB.

Conference Presentation

Citation Download Citation

Hongzhan Qiao, Kai Zhong, Jie Shi, Kefei Liu, Fangjie Li, Xianzhong Zhang, Degang Xu, and Jianquan Yao "Large-dynamic-range RCS measurements at high terahertz frequency range", Proc. SPIE 11559, Infrared, Millimeter-Wave, and Terahertz Technologies VII, 115590F (10 October 2020); https://doi.org/10.1117/12.2573255

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