Features of the HEO satellite communication systems

Tsimbal, Maxim; Панько, С. П.

doi:10.1109/sibcon.2015.7147266

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2017

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“…Typically, a number of satellites are deployed on complementary orbits to provide complete coverage over a specific area [11]. Satellites were employed on the Molniya and the Tundra orbits [12][13][14][15][16] by the former Soviet Union, for TV broadcast to high-latitude cities. A constellation of three satellites can be deployed in a Molniya orbit to provide continuous coverage at a specific longitude.…”

Section: Introductionmentioning

confidence: 99%

Sar Imaging on Heo Satellites With an Improved Frequency-Domain Algorithm

Chen¹,

Kiang²

2017

PIER M

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Abstract-The possibility of employing highly-elliptical-orbit (HEO) satellites for SAR imaging is investigated. A constellation of two satellites in the Tundra orbits, which are capable of covering all the high-latitude areas, are chosen as the platforms for SAR imaging. The received signal is processed with an improved frequency-domain algorithm (FDA) to reconstruct the image. Simulation results verify that the proposed method can produce better SAR images with less computational load and memory than the conventional FDA.

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