An Aerial Target Localization Method Using TOA and AOA Measurements with GEO-UAV Bistatic Configuration

Based on multi-station spatial diversity capability, GEO-UAV distributed radar could achieve high-precision aerial target localization with the single-transmitting and multiple-receiving configuration. However, the actual observation area can hardly be covered by several receiving stations simultane...

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Bibliographic Details
Published in:Advances in Electrical and Computer Engineering Vol. 24; no. 4; pp. 19 - 26
Main Authors: JIAO, X., ZHANG, J., CHEN, J., JIANG, L., WANG, Y., LI, Y., WANG, W.
Format: Journal Article
Language:English
Published: Suceava Stefan cel Mare University of Suceava 01.11.2024
Subjects:
Accuracy
aerial target
Aerial targets
Airplanes
Algorithms
Altitude
angle of arrival
Antenna arrays
Antennas
Beamforming
Beams (radiation)
Comparative analysis
Configurations
Drone aircraft
Effectiveness
Kalman filters
Localization
Localization method
measurements
Methods
Multistatic radar
Parameter estimation
Parameter identification
Radar arrays
Radar equipment
Radar systems
Radiation
Satellites
Target acquisition
time of arrival
Unmanned aerial vehicles
China
ISSN:1582-7445, 1844-7600
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Summary:Based on multi-station spatial diversity capability, GEO-UAV distributed radar could achieve high-precision aerial target localization with the single-transmitting and multiple-receiving configuration. However, the actual observation area can hardly be covered by several receiving stations simultaneously. Thus, it is necessary to explore a novel target localization method under a single receiving station condition. In this manuscript, an aerial target localization method with GEO-UAV bistatic configuration is presented, where TOA and AOA measurements are employed. Firstly, measurement models, including bistatic range-delay, pitching AOA, and azimuth AOA, are established using the spatial geometric relationship between the bistatic radar and the target. Then, the receiving range can be estimated using digital beamforming technology based on the receiving array antenna, where the antenna beam coverage information and the prior target altitude information are combined. Finally, the three-dimensional target localization is skillfully derived according to the bistatic configuration, and thus to avoid the parameter unrecognizable problem caused by insufficient degrees of freedom. The proposed algorithm fully exploits the intrinsic correlation characteristics between the measurement information and the bistatic configuration, which provides an effective way for aerial target localization. Simulation results verify the effectiveness of the proposed algorithm. Index Terms--aerial target, localization, angle of arrival, measurements, time of arrival.
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ISSN:1582-7445
1844-7600
DOI:10.4316/AECE.2024.04002