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    VERFAHREN UND NETZWERKANALYSATOR ZUR MESSUNG DER GRUPPENLAUFZEIT IN EINEM MESSOBJEKT
    2.
    发明公开
    VERFAHREN UND NETZWERKANALYSATOR ZUR MESSUNG DER GRUPPENLAUFZEIT IN EINEM MESSOBJEKT 审中-公开
    方法和网络分析仪用于测量组时间在测量对象

    公开(公告)号：EP2376931A2

    公开(公告)日：2011-10-19

    申请号：EP10708696.9

    申请日：2010-01-15

    申请人： Rohde & Schwarz GmbH & Co. KG

    发明人： BEDNORZ, Thilo ,  NEIDHARDT, Steffen

    IPC分类号： G01R31/317 ,  G01R31/28 ,  G01R25/00 ,  G01R27/28

    CPC分类号： G01R23/20 ,  G01R27/28 ,  H04B3/462

    摘要： A network analyser for measuring a group runtime (
    T
    G ), generated by a measuring object (17) to be measured, generates a stimulating signal (
    x
    ln (
    t )) made up of two signals (
    x
    In1 (
    t ),
    x
    In2 (
    t )) separated by a frequency difference (Δ
    ω ) stimulates the measuring object with the stimulating signal (
    x
    In (
    t )) and measures a response signal (
    x
    Out (
    t )) made up of two signals (
    x
    Out1 (
    t ),
    x
    Out2 (
    t )), which are phase shifted by the measuring object (17) relative to the signals (
    x
    In1 (
    t ),
    x
    In2 (
    t )) of the stimulation signal (
    x
    In (
    t )). The analyser then determines the phase difference (Δ
    φ
    In ) between the signals (
    x
    In1 (
    t ),
    x
    In2 (
    t )) of the stimulation signal (
    x
    In (
    t )) and a phase difference (Δ
    φ
    Out ) between the against (
    x
    Out1 (
    t ),
    x
    Out2 (
    t )) of the response signal (
    x
    Out (
    t )). The analyser finally calculates the group runtime (
    T
    G ) from the phase difference (Δ
    φ
    In ) of the signals (
    x
    In1 (
    t ),
    x
    In2 (
    t )) belonging to the stimulation signal (
    x
    In (
    t )) the phase difference (Δ
    φ
    Out ) of the signals (
    x
    Out1 (
    t ),
    x
    Out2 (
    t )) belonging to the response signal (
    x
    Out (
    t )) and the frequency separation (Δω).

    VERFAHREN UND SYSTEM ZUR ERMITTLUNG DES ENTSTEHUNGSORTES VON PASSIVEN INTERMODULATIONSPRODUKTEN
    4.
    发明公开
    VERFAHREN UND SYSTEM ZUR ERMITTLUNG DES ENTSTEHUNGSORTES VON PASSIVEN INTERMODULATIONSPRODUKTEN 有权
    方法和系统用于确定无源互调产物的工作场所

    公开(公告)号：EP2619932A1

    公开(公告)日：2013-07-31

    申请号：EP11754312.4

    申请日：2011-07-29

    申请人： Rohde&Schwarz GmbH&Co. KG

    发明人： NEIDHARDT, Steffen ,  EVERS, Christian

    IPC分类号： H04B17/00 ,  G01R23/20 ,  G01R31/11

    CPC分类号： H04B17/0085

    摘要： The invention relates to a method for determining the origin of a passive intermodulation product, wherein a distributed object (1) under test is excited with two first excitation signals (
    x1 (t), x2 (t) ), each having a single spectral line, and the frequencies
    (f
    1
    , f
    2
    ) of which exhibit a frequency spacing (Δ
    f ) from each other. The phase (
    φ
    IM3Mess ) of a first passive intermodulation product generated at the origin in the distributed object (1) under test by non-linear distortion from the first excitation signals (
    x1 (t), x2 (t) ) is measured and the propagation time (
    Δt ) of the first passive intermodulation product from the origin to the measuring instrument (5) is calculated from the measured phase(
    x1 (t), x2 (t) ) and the frequency (
    2 • f
    1
    - f­2­ )
    of the first intermodulation product. Finally, the origin of the passive intermodulation product is determined from the propagation time (
    Δt ) and the topology of the distributed object (1) under test
    .