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Proceedings Paper

Effect of low level atmospheric parameter on detection of remote aerial target by using ground-based microwave radiometer
Author(s): Zubiao Xiong; Yu Liu; Yaoting Zhu; Dongliang Duan
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Paper Abstract

It is necessary to study the attenuation model of atmosphere channel in order to detect remote aerial target by ground-based microwave radiometer. Firstly in this paper, according to the inhomogeneous vertical profile of atmospheric attenuation, a layered atmosphere is modeled between ground and the target to be detected. It is assumed that the atmosphere distributing is homogeneous in each layer, but unequal between the layers. Therefore, the microwave is refracted on the interface and its propagation path is a broken line. To ensure the accuracy of the model, hundreds of layers are occupied and the thickness of them increases exponentially from the ground. Then by using the United States Standard Atmosphere in 1976 and the MPM93 model, the theoretic values of the atmospheric opacity are computed. The results are compared with some experimental measured values. Based on the comparison, the validity and practicability of the layered atmosphere model is discussed. Finally, influence of operating frequency, elevation angle and altitude of radiometer on slant-path attenuation is analyzed, and some suggestions about these three parameters are provided.

Paper Details

Date Published: 4 January 2006
PDF: 5 pages
Proc. SPIE 5985, International Conference on Space Information Technology, 598528 (4 January 2006); doi: 10.1117/12.657427
Show Author Affiliations
Zubiao Xiong, Huazhong Univ. of Science and Technology (China)
Yu Liu, Huazhong Univ. of Science and Technology (China)
Yaoting Zhu, Huazhong Univ. of Science and Technology (China)
Dongliang Duan, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 5985:
International Conference on Space Information Technology
Cheng Wang; Shan Zhong; Xiulin Hu, Editor(s)

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