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      <marc:subfield code="a">Emerging technology snapshot : </marc:subfield>
      <marc:subfield code="b">countermeasures against hypersonic weapons.</marc:subfield>
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      <marc:subfield code="a">[Ottawa] : </marc:subfield>
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      <marc:subfield code="c">2023.</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Technologie émergente en bref : contre-mesures visant les armes hypersoniques.</marc:subfield>
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      <marc:subfield code="a">"Hypersonic weapons (including cruise missiles, glide and boost-glide vehicles) travel at Mach 5 or higher, retain a degree of in-flight maneuverability and follow lower-altitude, difficult-to-track trajectories, all of which make intercepting these weapons much harder than with ballistic missiles. Research on countermeasures to hypersonic weapons include high-power lasers and microwave weapons, railguns and hypersonic interceptors, along with ‘soft-kill’ weapons like cyberattacks to confuse, overload or disable critical subsystems, such as receivers for satellite navigation signals or controllers for flight surfaces"--page [1].</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2024/rddc-drdc/D69-71-2023-eng.pdf</marc:subfield>
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