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2 results on '"Lang, Shinan"'

1. Physiography and basal melt rate of 90°E Subglacial Lake

Author

Li, Dandan, Liu, Jun, Popov, Sergey, Li, Lin, Li, Fei, Cui, Xiangbin, Lang, Shinan, Sun, Bo, and Siegert, Martin

Abstract

Research data includes ice thickness,bed elevation andsurface elevationdata in radar.txt, free-air anomaly data infree-air anomaly.txt and water depth data in waterdepth.txt.

Published
2023
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2. A Modified Nonlinear Chirp Scaling Algorithm for Air-borne Ice Radar

Author

Fang Guangyou, Lang Shinan, Zhao Bo, and Liu Xiao-Jun

Subjects
Engineering, business.industry, Acoustics, Refraction, Spatial geometry, law.invention, Chirp scaling algorithm, Nonlinear system, law, Feature (computer vision), Electronic engineering, Phase compensation, Chirp scaling, Radar, business
Abstract

In this paper, a modified nonlinear chirp scaling (MNLCS) algorithm for air-borne ice radar data is proposed. The spatial geometry based on the two-layer medium is analyzed for the studying of MNLCS. The algorithm can compensate the refraction effects and the propagation velocity changes in different mediums automatically, and can improve the focusing feature of the scatters. According to the model of echo signal, the phase compensation factors and realized steps of the algorithm are given. Numerical experiments are executed. The experimental results show the effectiveness of the proposed algorithm.

Published
2014

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