On the TOPS mode spaceborne SAR

Xia Bai; Jin Ping Sun; Wen Hong; Shi Yi Mao

doi:10.1007/s11432-010-0030-z

On the TOPS mode spaceborne SAR

Xia Bai^*, Jin Ping Sun, Wen Hong, Shi Yi Mao

^*Corresponding author for this work

School of Information and Electronics

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

TOPS (terrain observation by progressive scans) is a recently proposed SAR mode for wide swath acquisition, which aims at achieving the same coverage and resolution as the SCAN mode besides creating scalloping-free images. In this paper, a general SAR imaging model used in TOPS and other SAR modes is introduced, where the antenna sweep rate, Doppler centroid rate, illumination time and azimuth resolution are described by a parameter defined as the "mode factor". After analyzing the characteristics of TOPS signal, an algorithm based on chirp-z transform is proposed, in which a new de-rotation function is used. Simulation results validate the proposed algorithm.

Original language	English
Pages (from-to)	367-378
Number of pages	12
Journal	Science in China, Series F: Information Sciences
Volume	53
Issue number	2
DOIs	https://doi.org/10.1007/s11432-010-0030-z
Publication status	Published - 2010

Keywords

Acquisition mode
Synthetic aperture radar
TOPS

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10.1007/s11432-010-0030-z

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title = "On the TOPS mode spaceborne SAR",

abstract = "TOPS (terrain observation by progressive scans) is a recently proposed SAR mode for wide swath acquisition, which aims at achieving the same coverage and resolution as the SCAN mode besides creating scalloping-free images. In this paper, a general SAR imaging model used in TOPS and other SAR modes is introduced, where the antenna sweep rate, Doppler centroid rate, illumination time and azimuth resolution are described by a parameter defined as the {"}mode factor{"}. After analyzing the characteristics of TOPS signal, an algorithm based on chirp-z transform is proposed, in which a new de-rotation function is used. Simulation results validate the proposed algorithm.",

keywords = "Acquisition mode, Synthetic aperture radar, TOPS",

author = "Xia Bai and Sun, \{Jin Ping\} and Wen Hong and Mao, \{Shi Yi\}",

year = "2010",

doi = "10.1007/s11432-010-0030-z",

language = "English",

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pages = "367--378",

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TY - JOUR

T1 - On the TOPS mode spaceborne SAR

AU - Bai, Xia

AU - Sun, Jin Ping

AU - Hong, Wen

AU - Mao, Shi Yi

PY - 2010

Y1 - 2010

N2 - TOPS (terrain observation by progressive scans) is a recently proposed SAR mode for wide swath acquisition, which aims at achieving the same coverage and resolution as the SCAN mode besides creating scalloping-free images. In this paper, a general SAR imaging model used in TOPS and other SAR modes is introduced, where the antenna sweep rate, Doppler centroid rate, illumination time and azimuth resolution are described by a parameter defined as the "mode factor". After analyzing the characteristics of TOPS signal, an algorithm based on chirp-z transform is proposed, in which a new de-rotation function is used. Simulation results validate the proposed algorithm.

AB - TOPS (terrain observation by progressive scans) is a recently proposed SAR mode for wide swath acquisition, which aims at achieving the same coverage and resolution as the SCAN mode besides creating scalloping-free images. In this paper, a general SAR imaging model used in TOPS and other SAR modes is introduced, where the antenna sweep rate, Doppler centroid rate, illumination time and azimuth resolution are described by a parameter defined as the "mode factor". After analyzing the characteristics of TOPS signal, an algorithm based on chirp-z transform is proposed, in which a new de-rotation function is used. Simulation results validate the proposed algorithm.

KW - Acquisition mode

KW - Synthetic aperture radar

KW - TOPS

UR - https://www.scopus.com/pages/publications/77952919869

U2 - 10.1007/s11432-010-0030-z

DO - 10.1007/s11432-010-0030-z

M3 - Article

AN - SCOPUS:77952919869

SN - 1009-2757

VL - 53

SP - 367

EP - 378

JO - Science in China, Series F: Information Sciences

JF - Science in China, Series F: Information Sciences

IS - 2

ER -

On the TOPS mode spaceborne SAR

Abstract

Keywords

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