A HIGH-RESOLUTION IMAGING EXPERIMENT WITH MINI-UAV-BASED STEPPED FREQUENCY BFSAR

Simin He; Zhanze Wang; Chenghao Wang; Feifeng Liu

doi:10.1049/icp.2021.0751

A HIGH-RESOLUTION IMAGING EXPERIMENT WITH MINI-UAV-BASED STEPPED FREQUENCY BFSAR

Simin He, Zhanze Wang, Chenghao Wang, Feifeng Liu^*

^*Corresponding author for this work

School of Information and Electronics

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

SAR system can achieve high range resolution by transmitting signals of large bandwidth, which is not easy especially for mini-UAV-based bistatic forward-looking SAR (BFSAR) system due to the platform limitation of load capacity and power consumption. Meanwhile, the bistatic configuration requires high clock synchronization between transmitter and receiver. In this paper, a stepped frequency SAR system is used to obtain high resolution image. Firstly, we introduce the experimental system and the hardware coarse synchronization. Secondly, we use the information of direct-path signal to further compensate the synchronization error, and splice the sub-bands to reconstruct the broadband spectrum. Finally, the effectiveness of the stepped frequency system and the imaging processing are verified by real data.

Original language	English
Title of host publication	IET Conference Proceedings
Publisher	Institution of Engineering and Technology
Pages	749-753
Number of pages	5
Volume	2020
Edition	9
ISBN (Electronic)	9781839535406
DOIs	https://doi.org/10.1049/icp.2021.0751
Publication status	Published - 2020
Event	5th IET International Radar Conference, IET IRC 2020 - Virtual, Online Duration: 4 Nov 2020 → 6 Nov 2020

Conference

Conference	5th IET International Radar Conference, IET IRC 2020
City	Virtual, Online
Period	4/11/20 → 6/11/20

Keywords

BISTATIC FORWARD-LOOKING CONFIGURATION
HIGH-RESOLUTION IMAGING
STEPPED FREQUENCY SYSTEM
UAV-BASED SYSTEM

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10.1049/icp.2021.0751

Cite this

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title = "A HIGH-RESOLUTION IMAGING EXPERIMENT WITH MINI-UAV-BASED STEPPED FREQUENCY BFSAR",

abstract = "SAR system can achieve high range resolution by transmitting signals of large bandwidth, which is not easy especially for mini-UAV-based bistatic forward-looking SAR (BFSAR) system due to the platform limitation of load capacity and power consumption. Meanwhile, the bistatic configuration requires high clock synchronization between transmitter and receiver. In this paper, a stepped frequency SAR system is used to obtain high resolution image. Firstly, we introduce the experimental system and the hardware coarse synchronization. Secondly, we use the information of direct-path signal to further compensate the synchronization error, and splice the sub-bands to reconstruct the broadband spectrum. Finally, the effectiveness of the stepped frequency system and the imaging processing are verified by real data.",

keywords = "BISTATIC FORWARD-LOOKING CONFIGURATION, HIGH-RESOLUTION IMAGING, STEPPED FREQUENCY SYSTEM, UAV-BASED SYSTEM",

author = "Simin He and Zhanze Wang and Chenghao Wang and Feifeng Liu",

note = "Publisher Copyright: {\textcopyright} 2020 IET Conference Proceedings. All rights reserved.; 5th IET International Radar Conference, IET IRC 2020 ; Conference date: 04-11-2020 Through 06-11-2020",

year = "2020",

doi = "10.1049/icp.2021.0751",

language = "English",

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booktitle = "IET Conference Proceedings",

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T1 - A HIGH-RESOLUTION IMAGING EXPERIMENT WITH MINI-UAV-BASED STEPPED FREQUENCY BFSAR

AU - He, Simin

AU - Wang, Zhanze

AU - Wang, Chenghao

AU - Liu, Feifeng

PY - 2020

Y1 - 2020

N2 - SAR system can achieve high range resolution by transmitting signals of large bandwidth, which is not easy especially for mini-UAV-based bistatic forward-looking SAR (BFSAR) system due to the platform limitation of load capacity and power consumption. Meanwhile, the bistatic configuration requires high clock synchronization between transmitter and receiver. In this paper, a stepped frequency SAR system is used to obtain high resolution image. Firstly, we introduce the experimental system and the hardware coarse synchronization. Secondly, we use the information of direct-path signal to further compensate the synchronization error, and splice the sub-bands to reconstruct the broadband spectrum. Finally, the effectiveness of the stepped frequency system and the imaging processing are verified by real data.

AB - SAR system can achieve high range resolution by transmitting signals of large bandwidth, which is not easy especially for mini-UAV-based bistatic forward-looking SAR (BFSAR) system due to the platform limitation of load capacity and power consumption. Meanwhile, the bistatic configuration requires high clock synchronization between transmitter and receiver. In this paper, a stepped frequency SAR system is used to obtain high resolution image. Firstly, we introduce the experimental system and the hardware coarse synchronization. Secondly, we use the information of direct-path signal to further compensate the synchronization error, and splice the sub-bands to reconstruct the broadband spectrum. Finally, the effectiveness of the stepped frequency system and the imaging processing are verified by real data.

KW - BISTATIC FORWARD-LOOKING CONFIGURATION

KW - HIGH-RESOLUTION IMAGING

KW - STEPPED FREQUENCY SYSTEM

KW - UAV-BASED SYSTEM

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U2 - 10.1049/icp.2021.0751

DO - 10.1049/icp.2021.0751

M3 - Conference contribution

AN - SCOPUS:85174656428

VL - 2020

SP - 749

EP - 753

BT - IET Conference Proceedings

PB - Institution of Engineering and Technology

T2 - 5th IET International Radar Conference, IET IRC 2020

Y2 - 4 November 2020 through 6 November 2020

ER -

A HIGH-RESOLUTION IMAGING EXPERIMENT WITH MINI-UAV-BASED STEPPED FREQUENCY BFSAR

Abstract

Conference

Keywords

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