A general two-dimensional spectrum based on polynomial range model for medium-earth-orbit Synthetic Aperture Radar signal processing

Huang, Lizhen; Hu, Donghui; Ding, Chibiao; Qiu, Xiaolan

doi:10.1109/icsps.2010.5555384

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The Geometry Structure and Signal Model1

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2015

2023

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“…where A 1 is a complex constant, W r (f t ) is the range frequency envelope, and W a (f η ) is the azimuth frequency envelope. According to [11,12], we can have…”

Section: The Geometry Structure and Signal Modelmentioning

confidence: 99%

“Stop-and-go” error analysis of geosynchronous SAR

Tian

Guo

2015

Sci. China Inf. Sci.

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In this paper, the slant range error introduced by the "stop-and-go" assumption is analyzed in detail. Owing to the high orbit and long synthetic aperture time of geosynchronous SAR (Geo-SAR), the slant range error introduced by the "stop-and-go" assumption should be considered. In addition, an accurate signal propagation delay time equation of Geo-SAR based on circle orbit is presented, and the error of the "stop-andgo" assumption is demonstrated by simulation. An "equivalent position" model is proposed and validated by simulation. The error of various powers of "stop-and-go" slant range is analyzed using Legendre orthogonal series expansion. The limitation of the stop-and-so assumption is proved by point target simulation.

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“…where A 1 is a complex constant, W r (f t ) is the range frequency envelope, and W a (f η ) is the azimuth frequency envelope. According to [11,12], we can have…”

Section: The Geometry Structure and Signal Modelmentioning

confidence: 99%