Performance Analysis and Parameter Design of Synthetic Aperture Passive Positioning

WANG Yuqi; SUN Guangcai; XING Mengdao; ZHANG Zijing

doi:10.11999/JEIT210524

Volume 44 Issue 9

Sep. 2022

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WANG Yuqi, SUN Guangcai, XING Mengdao, ZHANG Zijing. Performance Analysis and Parameter Design of Synthetic Aperture Passive Positioning[J]. Journal of Electronics & Information Technology, 2022, 44(9): 3155-3162. doi: 10.11999/JEIT210524

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WANG Yuqi, SUN Guangcai, XING Mengdao, ZHANG Zijing. Performance Analysis and Parameter Design of Synthetic Aperture Passive Positioning[J]. Journal of Electronics & Information Technology, 2022, 44(9): 3155-3162. doi: 10.11999/JEIT210524

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Performance Analysis and Parameter Design of Synthetic Aperture Passive Positioning

doi: 10.11999/JEIT210524

National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China

Funds: The National Science Fund for Distinguished Young Scholars (61825105)

Received Date: 2021-06-07
Rev Recd Date: 2022-07-27

Available Online: 2022-08-21

Publish Date: 2022-09-19

Abstract

Abstract

A long synthetic aperture is required to obtain two-dimensional high resolution in synthetic aperture passive positioning. However, the polynomial approximation of the slant range causes range positioning errors. To resolve the problem, the influencing factors of the range positioning error are analyzed in this paper and an approximate expression of the positioning error is given. The influencing factors of range resolution and azimuth resolution are also analyzed, and the resolution analysis method is studied. On this basis, the optimization method of synthetic aperture length is given by combining the constraints of positioning accuracy and resolution. The simulation results verify the effectiveness of the proposed method.
- Passive positioning,
- Synthetic aperture passive positioning,
- Range positioning error analysis,
- Positioning resolution analysis,
- Parameter optimization

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