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    • 1. 发明授权
    • Apparatus and method for pulse measurement
    • 用于脉冲测量的装置和方法
    • US07519338B2
    • 2009-04-14
    • US11165839
    • 2005-06-23
    • Reiner HausdorfPavel BarosLeo Brueckner
    • Reiner HausdorfPavel BarosLeo Brueckner
    • H04B17/00
    • G01R19/04
    • A measurement apparatus (1) for measuring peak pulses of a radio frequency input signal (RFinput) comprises mixing means for mixing the radio frequency input signal (RFinput) with a local oscillator signal (LO) in order to convert the radio frequency input signal (RFinput) directly to zero centre frequency thereby suppressing frequency components in a range close to zero frequency. Control means (20) control the frequency (fLO) of the local oscillator signal (LO) in a manner that a first measurement is performed in a first frequency range and that a second measurement is performed in a second frequency range shifted from the first frequency range.
    • 用于测量射频输入信号(RFinput)的峰值脉冲的测量装置(1)包括混合装置,用于将射频输入信号(RFinput)与本地振荡器信号(LO)混频,以便将射频输入信号 RFinput)直接到零中心频率,从而抑制接近零频率的范围内的频率分量。 控制装置(20)以在第一频率范围内执行第一测量并且在从第一频率偏移的第二频率范围内执行第二测量的方式来控制本地振荡器信号(LO)的频率(fLO) 范围。
    • 2. 发明授权
    • Method and apparatus for zero-mixing spectrum analysis with Hilbert transform
    • 用希尔伯特变换进行零混合频谱分析的方法和装置
    • US07176670B2
    • 2007-02-13
    • US11236226
    • 2005-09-27
    • Reiner HausdorfPavel BarosRoman Striz
    • Reiner HausdorfPavel BarosRoman Striz
    • G01R13/24G01R23/00
    • G01R23/165
    • An apparatus for analyzing a spectrum of an input signal (χ(t)) having at least one line with a center frequency ({circumflex over (ω)}x) at the center of the line includes: a mixer for zero-mixing the input signal (χ(t)) to produce a base band signal (z(t)) by sweeping a local oscillator frequency (ωs) generated by a local oscillator, a resolution filter for filtering the base band signal (z(t)) to produce a filtered base band signal (y(t) ), and an envelope reconstruction means for reconstructing the envelope (E(ω)) of the spectrum of the input signal (χ(t)) by using an estimated amplitude (ŷx) at an estimated center frequency ({circumflex over (ω)}x) of each line of the input signal (χ(t)). Further, only the real component (I) of the base band signal (z(t)) is filtered with the resolution filter and the imaginary component (Q) is generated from the filtered base band signal (y(t)) by performing a Hilbert transform in a Hilbert filter arranged downstream of the resolution filter.
    • 一种用于分析具有至少一条具有中心频率({回旋((ω)} )线的输入信号(chi(t))的频谱的装置,包括: 用于通过扫描由本地振荡器产生的本地振荡器频率(ωω)来混合输入信号(chi(t))以产生基带信号(z(t))的混频器, 用于对基带信号(z(t))进行滤波以产生经滤波的基带信号(y(t))的分辨率滤波器,以及用于重构输入的频谱的包络(E(ω))的包络重构装置 信号(chi(t))通过使用估计的中心频率({circumflex over(omega)}×××)的估计振幅(y×x) 输入信号(chi(t))。 此外,只有基带信号(z(t))的实分量(I)用分辨率滤波器滤波,并且通过执行滤波的基带信号(y(t))产生虚分量(Q) 在希尔伯特滤波器下游设置希尔伯特变换。
    • 3. 发明授权
    • Method and apparatus for zero-mixing spectrum analysis
    • 用于零混合频谱分析的方法和装置
    • US07099016B2
    • 2006-08-29
    • US10495187
    • 2003-01-16
    • Pavel BarosLeo BruecknerRudolf ReckziegelReiner Hausdorf
    • Pavel BarosLeo BruecknerRudolf ReckziegelReiner Hausdorf
    • G01B9/02
    • G01R23/165G01R23/173
    • An apparatus (1) for analyzing a spectrum of an input signal (x(t)) having at least one line with a center frequency (@s) comprises a mixer (2) for zero-mixing the input signal (x(t)) to produce a base band signal (z(t)) by sweeping a local oscillator frequency (@s) generated by a local oscillator (3) and a resolution filter (4) for filtering the base band signal (z(t)) to produce a filtered base band signal (y(t)). Detector means (7) detects the time of occurrence (ti), the duration (ΔTi) and the maximum value (y′i) of several halfwaves of the filtered base band signal (y(t)). Envelope reconstruction means (6) reconstructs the envelope (E(@)) of the spectrum of the input signal (x(t)) by using an estimated amplitude at an estimated center frequency of each line of the input signal (x(t)). The estimated center frequency and the estimated amplitude are calculated from the time of occurrence (ti), the duration (ΔTi) and the maximum value (y′i) detected by the detector means (7) from the several halfwaves of the filtered base band signal (y(t)).
    • 一种用于分析具有至少一条具有中心频率的线的输入信号(x(t))的频谱的装置(1)包括:混合器(2),用于对 输入信号(x(t)),以通过扫描由本地振荡器(3)和分辨率滤波器(3)产生的本地振荡器频率(@ SUB)来产生基带信号(z(t) 4)用于对基带信号(z(t))进行滤波以产生经滤波的基带信号(y(t))。 检测器装置(7)检测发生时间(t i i i i),持续时间(ΔT N)和最大值(y' )滤波后的基带信号(y(t))的几个半波。 包络重建装置(6)通过使用输入信号(x(t))的每行的估计中心频率处的估计振幅来重建输入信号(x(t))的频谱的包络(E(@)) )。 估计的中心频率和估计的振幅是从发生时间(t i i i i i),持续时间(ΔT 1)和最大值(y' 由检测器装置(7)从经滤波的基带信号(y(t))的几个半波中检测到的信号。