Investigation on PRI Variation for High Squint Spaceborn Spotlight SAR

Pei WANG; Wei XU; Ning LI; Weidong YU

doi:10.11999/JEIT180049

Volume 40 Issue 10

Sep. 2018

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Pei WANG, Wei XU, Ning LI, Weidong YU. Investigation on PRI Variation for High Squint Spaceborn Spotlight SAR[J]. Journal of Electronics & Information Technology, 2018, 40(10): 2470-2477. doi: 10.11999/JEIT180049

Citation:

Pei WANG, Wei XU, Ning LI, Weidong YU. Investigation on PRI Variation for High Squint Spaceborn Spotlight SAR[J]. Journal of Electronics & Information Technology, 2018, 40(10): 2470-2477. doi: 10.11999/JEIT180049

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Investigation on PRI Variation for High Squint Spaceborn Spotlight SAR

doi: 10.11999/JEIT180049

Pei WANG^{1, 2
,
,},
Wei XU¹,
Ning LI³,
Weidong YU¹

1.
Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
School of Computer and Information Engineering, Henan University, Kaifeng 475004, China

Funds: The National Ministries Foundation

Received Date: 2018-01-15
Rev Recd Date: 2018-06-28

Available Online: 2018-07-30

Publish Date: 2018-10-01

Abstract

Abstract

High squint spotlight mode of spaceborne SAR can be used to achieve high resolution and wide swath, and also can be used to acquire information of target from multi-azimuth. However, the considerable range migration can result in efficiency decreasing in data acquisition, and dilemma in system design. This problem can be solved by the technology named PRI (Pulse Repetition Interval) variation which can track the slant range variation of the target during data acquisition. In this paper, the principle of PRI variation is studied, and methods of PRI sequence iterative design and system parameter selection are proposed. Two approaches to reconstruct the nonequal spaced and nonperiod data in azimuth sampling are compared. Finally, the first results of PRI variation mode of airborne SAR experiment with high slant spotlight mode are presented.
- SAR,
- Pulse Repetition Interval (PRI) variation,
- High squint spotlight,
- Spaceborne,
- Airborne

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References(21)

References

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