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  <gcmd:gcmd>
    <gcmd:termsOfUse>https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf</gcmd:termsOfUse>
    <gcmd:keywordVersion>draft</gcmd:keywordVersion>
    <gcmd:schemeVersion>2025-07-25</gcmd:schemeVersion>
    <gcmd:viewer>https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/030b4439-8a69-408a-b365-ccdf148d0854</gcmd:viewer>
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  <skos:Concept rdf:about="030b4439-8a69-408a-b365-ccdf148d0854">
    <skos:broader rdf:resource="8799f524-e313-4d2d-9428-8d672d123513"/>
    <skos:prefLabel xml:lang="en">IMPULSE RESPONSE</skos:prefLabel>
    <skos:changeNote>Date=2026-01-07 User Id=tstevens User Note=added new science keyword</skos:changeNote>
    <skos:changeNote>Date=2026-01-07 User Id=system System Note=Added broader relation from IMPULSE RESPONSE [030b4439-8a69-408a-b365-ccdf148d0854] to SENSOR CHARACTERISTICS [8799f524-e313-4d2d-9428-8d672d123513]</skos:changeNote>
    <gcmd:reference gcmd:text="https://www.sciencedirect.com/topics/computer-science/impulse-response" xml:lang="en"/>
    <skos:definition xml:lang="en">Impulse response is defined as the output of a linear time-invariant system when the input signal is a discrete impulse, represented mathematically as the coefficients of a finite impulse response filter.</skos:definition>
    <dcterms:modified>2026-01-07T12:06:20.416Z</dcterms:modified>
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