On Target Detection by Quantum Radar (Preprint)
arxiv(2024)
摘要
Both Noise Radar and Quantum Radar, with some alleged common features,
exploit the randomness of the transmitted signal to enhance radar covertness
and to reduce mutual interference. While Noise Radar has been prototypically
developed and successfully tested in many environments by different
organizations, the significant investments on Quantum Radar seem not to be
followed by practically operating prototypes or demonstrators. Starting from
the trivial fact that radar detection depends on the energy transmitted on the
target and backscattered by it, some detailed evaluations in this work show
that the detection performance of all the proposed QR types in the literature
are orders of magnitude below the ones of a much simpler and cheaper equivalent
classica radar set, in particular of the NR type. Moreover, the absence of a,
sometimes alleged, Quantum radar cross section different from the radar cross
section is explained. Hence, the various Quantum Radar proposals cannot lead to
any useful result, especially, but not limited to, the alleged detection of
stealth targets.
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