Paper Info
Title
A High-Resolution and High-Precision Passive Positioning System Based on Synthetic Aperture Technique
Abstract
The nonlinear variation of viewing angles over a long duration causes a nonlinear initial phase of the received pulse in a passive positioning system with a single moving receiver. Typical positioning systems ignore the phase and perform incoherent accumulation of the long-time data, thus resulting in a decrease in positioning accuracy, especially at a low signal-to-noise ratio (SNR). A novel passive positioning system with a synthetic aperture technique, named synthetic aperture positioning (SAP) system, is proposed to resolve the issue. First, a new 2-D continuous sampling working model is proposed. Then, the SAP system and a cost function are given to analyze the positioning performance. Third, a positioning algorithm based on the maximum likelihood estimation (MLE) is studied to handle the cost function and position the emitter. Simulation and experimental results verify the validity and effectiveness of the proposed SAP system.
Year
DOI
Venue
2022
10.1109/TGRS.2022.3186767
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
Keywords
DocType
Volume
Antenna arrays, Apertures, Direction-of-arrival estimation, Cost function, Antenna measurements, Signal to noise ratio, Position measurement, Maximum likelihood estimation (MLE), passive positioning, single receiver positioning, synthetic aperture passive positioning
Journal
60
ISSN
Citations 
PageRank 
0196-2892
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Yuqi Wang101.69
Guang-Cai Sun205.41
Yong Wang382.99
Zi-jing Zhang413515.74
Mengdao Xing51340162.45
Xiaoniu Yang69010.96