ALL-RUSSIA OPEN ANNUAL CONFERENCES ON
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE
Principal physics, methods and techniques for monitoring the environment, potentially dangerous phenomena and objects
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Proceedings of the 16th Conference (November 12-16, 2018, Moscow, Russia)
Measurement of Terrain Height by a Space Bistatic Radar System P-band with Reference to Destructive Ionosphere Effect
Oleg V. Goryachkin, Ivan V. Maslov
Povolzhskiy State University of Telecommunications and Informatics, Samara, Russia
oleg.goryachkin@gmail.com
DOI 10.21046/rorse2018.124
The possibility of using an interferometric bistatic acquisition in the P-band with a small spacecraft configuration - ground receiving point is considered. A theoretical study influence of the ionosphere on the accuracy of the reconstruction height of the terrain by a two-pass interferometer based on a P-band synthetic aperture radar (SAR) system and a ground receiving point is presented. The necessary statistical characteristics of random signal fluctuations are determined. An error of determining the height is presented depending on the geometry of the interferometer, the influence of the parameters of the ionosphere, additive noise, and spatial decorrelation of the radar images. Using the presented numerical dependences, it is possible to estimate the optimal range of values for the interferometric base and the error in determining the height for point and extended targets. When reflecting from extended targets, the error due to the spatial decorrelation of the reflected signals in one resolution element is additionally taken into account.
Keywords: bistatic sar, two-pass interferometry, ionosphere, P-band, small spacecraft
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Section 2. Methods and algorithms for processing remote monitoring data
124-131