Orbit Refinement Using Passive Radar Measurements from Multiple LOFAR Receivers
conference paper
Accurate orbit information is crucial for Space Domain Awareness (SDA) to prevent collisions, manage space traffic, and handle the increasing number of space objects. To address this need, this study focuses on refining the orbits of space objects using passive radar measurements from multiple Low Frequency Array (LOFAR) stations, which utilize the transmitted signals from non-cooperative radar systems.
Bistatic Doppler measurements from multiple receivers have been acquired for target detection. The Doppler curve fitting method was then applied to associate these detections with space objects using Two-Line
Element (TLE) orbital information. To predict the satellite’s path more accurately, a non-linear and iterative estimation process is used to refine the orbit. The results show that the bistatic Doppler measurements from six different LOFAR receivers can be used for effective orbit refinement, improving accuracy and robustness against outliers.
Bistatic Doppler measurements from multiple receivers have been acquired for target detection. The Doppler curve fitting method was then applied to associate these detections with space objects using Two-Line
Element (TLE) orbital information. To predict the satellite’s path more accurately, a non-linear and iterative estimation process is used to refine the orbit. The results show that the bistatic Doppler measurements from six different LOFAR receivers can be used for effective orbit refinement, improving accuracy and robustness against outliers.
Topics
TNO Identifier
1019341
Publisher
IEEE
Source title
IEEE Radar Conference 2025
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