Limitations of Radar Coordinates
Donato Bini, Luca Lusanna, Bahram Mashhoon
TL;DR
This paper critically examines the limitations and physical significance of radar coordinate systems for different observer motions, including hyperbolic and rotating observers, highlighting their utility and admissibility.
Contribution
It provides a detailed analysis of radar coordinates for various observers and assesses their physical relevance and limitations.
Findings
Radar coordinates are useful but have limitations depending on observer motion.
The admissibility of radar coordinates varies with observer type.
The physical significance of radar coordinates is critically evaluated.
Abstract
The construction of a radar coordinate system about the world line of an observer is discussed. Radar coordinates for a hyperbolic observer as well as a uniformly rotating observer are described in detail. The utility of the notion of radar distance and the admissibility of radar coordinates are investigated. Our results provide a critical assessment of the physical significance of radar coordinates.
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