Estimation of ground range on the sweep frequency backscatter leading edge |
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Authors: | Fanfan Su Zhengyu ZhaoFeng Deng Shipeng Li |
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Institution: | School of Electronic Information, Wuhan University, Luoyu Road #129, Wuhan, Hubei 430079, China |
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Abstract: | The high frequency management system with backscatter radar supplies the real time ionosphere channel conditions to high frequency users, which leads to the demand for the ground range between the radar location and the scatters on the distant ground. The ionosphere electron density profile is usually inversed to obtain the ground range. An inversion algorithm, with which the ground range on the leading edge of the backscatter ionograms can be obtained without electron density, is presented in this paper. The ray path geometry of the backscatter sounding and the change in the group path on the leading edge with operating frequency are used to derive the ground range. Synthesized backscatter ionogram and experimental backscatter ionograms are processed to validate the algorithm. The results indicate that the algorithm is usable for high frequency management system. |
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Keywords: | Backscatter radar Ionosphere Backscatter ionograms Ground range |
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