TOPSAR beam position design method based on linear flow

Wei Yang; Chun Sheng Li; Jie Chen; Ling Ling Xue

doi:10.3969/j.issn.1001-506X.2011.10.11

TOPSAR beam position design method based on linear flow

Wei Yang^*
, Chun Sheng Li
, Jie Chen
, Ling Ling Xue

^*Corresponding author for this work

School of Electronic and Information Engineering

Shanghai Institution of Satellite Engineering

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

2 Scopus citations

Abstract

Tackling the complexity and inefficiency in the system design of spaceborne terrain observation by progressive scans (TOPSAR) mode, this paper analyses some beam position design problems unattended before, including the variation of azimuth resolution with slant-range, the effects on azimuth ambiguity to the signal ratio (AASR) of antenna pattern grating lobes introduced by beam steering, and the relationship between timeline and observation efficiency. Then a novel system beamposition design method is presented based on the linear flow, in which the selection of pulse repetition frequency is optimized according to the required AASR. The proposed method adds freedom and avoids iteration, thus improving the efficiency of system design. Finally, the validity of the method is justified by simulation results.

Original language	English
Pages (from-to)	2198-2202
Number of pages	5
Journal	Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics
Volume	33
Issue number	10
DOIs	https://doi.org/10.3969/j.issn.1001-506X.2011.10.11
State	Published - Oct 2011

Keywords

Azimuth ambiguity to signal ratio (AASR)
Beam position design
Linear flow
Synthetic aperture radar (SAR)

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10.3969/j.issn.1001-506X.2011.10.11

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title = "TOPSAR beam position design method based on linear flow",

abstract = "Tackling the complexity and inefficiency in the system design of spaceborne terrain observation by progressive scans (TOPSAR) mode, this paper analyses some beam position design problems unattended before, including the variation of azimuth resolution with slant-range, the effects on azimuth ambiguity to the signal ratio (AASR) of antenna pattern grating lobes introduced by beam steering, and the relationship between timeline and observation efficiency. Then a novel system beamposition design method is presented based on the linear flow, in which the selection of pulse repetition frequency is optimized according to the required AASR. The proposed method adds freedom and avoids iteration, thus improving the efficiency of system design. Finally, the validity of the method is justified by simulation results.",

keywords = "Azimuth ambiguity to signal ratio (AASR), Beam position design, Linear flow, Synthetic aperture radar (SAR)",

author = "Wei Yang and Li, \{Chun Sheng\} and Jie Chen and Xue, \{Ling Ling\}",

year = "2011",

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doi = "10.3969/j.issn.1001-506X.2011.10.11",

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T1 - TOPSAR beam position design method based on linear flow

AU - Yang, Wei

AU - Li, Chun Sheng

AU - Chen, Jie

AU - Xue, Ling Ling

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N2 - Tackling the complexity and inefficiency in the system design of spaceborne terrain observation by progressive scans (TOPSAR) mode, this paper analyses some beam position design problems unattended before, including the variation of azimuth resolution with slant-range, the effects on azimuth ambiguity to the signal ratio (AASR) of antenna pattern grating lobes introduced by beam steering, and the relationship between timeline and observation efficiency. Then a novel system beamposition design method is presented based on the linear flow, in which the selection of pulse repetition frequency is optimized according to the required AASR. The proposed method adds freedom and avoids iteration, thus improving the efficiency of system design. Finally, the validity of the method is justified by simulation results.

AB - Tackling the complexity and inefficiency in the system design of spaceborne terrain observation by progressive scans (TOPSAR) mode, this paper analyses some beam position design problems unattended before, including the variation of azimuth resolution with slant-range, the effects on azimuth ambiguity to the signal ratio (AASR) of antenna pattern grating lobes introduced by beam steering, and the relationship between timeline and observation efficiency. Then a novel system beamposition design method is presented based on the linear flow, in which the selection of pulse repetition frequency is optimized according to the required AASR. The proposed method adds freedom and avoids iteration, thus improving the efficiency of system design. Finally, the validity of the method is justified by simulation results.

KW - Azimuth ambiguity to signal ratio (AASR)

KW - Beam position design

KW - Linear flow

KW - Synthetic aperture radar (SAR)

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JF - Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics

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TOPSAR beam position design method based on linear flow

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