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    • 13. 发明授权
    • Method and device for measuring phase noise
    • 用于测量相位噪声的方法和装置
    • US08093909B2
    • 2012-01-10
    • US12301966
    • 2008-02-07
    • Wolfgang WendlerAlexander RothHagen Eckert
    • Wolfgang WendlerAlexander RothHagen Eckert
    • G01R29/26
    • G01R29/26
    • A method and a device for measuring the phase noise of a signal registers the measurement signal (V) with a given measurement frequency (f1) and with a superimposed phase noise (f1(t)), divides the measurement signal (V) into a first and second measurement signal (V1′, V2′), derives a first signal (V1) with a first frequency ((f1+f1(t))/N) reduced relative to the measurement frequency (f1) and the superimposed phase noise (f1(t)) and a second signal (V2) with a second frequency ((f1+f1(t))/M) reduced relative to the measurement frequency (f1) and the superimposed phase noise (f1(t)), determines a third signal (V3) with a third frequency (f3(t)) compensated by the measurement frequency (f1) relative to the first frequency ((f1+f1(t))/N) of the first signal (V1) and a fourth signal (V4) with a fourth frequency (f4(t)) compensated by the measurement frequency (f1) relative to the second frequency ((f1+f1(t))/M) of the second signal (V2) and determines a correlation spectrum from the third and fourth signal (V3, V4). The frequencies of the third and fourth signal (V3, V4) come to be disposed in each case within the frequency range of the correlation spectrum as a result of the frequency division of the frequency (f1+f1(t)) of the first and second measurement signal (V1′, V2′).
    • 用于测量信号的相位噪声的方法和装置以给定的测量频率(f1)和叠加的相位噪声(f1(t))寄存测量信号(V),将测量信号(V)分成 第一和第二测量信号(V1',V2')导出相对于测量频率(f1)减小的第一频率((f1 + f1(t))/ N)的第一信号(V1)和叠加的相位噪声 (f1(t))和具有第二频率((f1 + f1(t))/ M)的第二信号(V2)相对于测量频率(f1)和叠加相位噪声(f1(t))减小, 以相对于第一信号(V1)的第一频率((f1 + f1(t))/ N)的测量频率(f1)补偿第三频率(f3(t))的第三信号(V3) 相对于第二信号(V2)的第二频率((f1 + f1(t))/ M),通过测量频率(f1)补偿具有第四频率(f4(t))的第四信号(V4) 来自t的相关谱 第四和第四信号(V3,V4)。 第三和第四信号(V3,V4)的频率作为第一和第三信号频率(f1 + f1(t))分频的结果而在相关频谱的频率范围内被布置在每种情况下, 第二测量信号(V1',V2')。
    • 14. 发明授权
    • Method and system for noise measurement with combinable subroutines for the measurement, identification and removal of sinusoidal interference signals in a noise signal
    • 噪声测量方法和系统,用于测量,识别和消除噪声信号中正弦干扰信号的可组合子程序
    • US07885421B2
    • 2011-02-08
    • US11333793
    • 2006-01-17
    • Gregor FeldhausHagen Eckert
    • Gregor FeldhausHagen Eckert
    • H04B15/00G01R13/00G06F17/10
    • G01R29/26
    • An approach is provided for measuring, identifying, and removing at least one sinusoidal interference signal (Ak·ej(ωkt+φk), Ak·ej(μ·ωkΔt+φk)) in a noise signal (w(t), w(μ·Δt)). A frequency range to be measured is split into a plurality of frequency bands (ν) via a Fast Fourier Transform (FFT) filter bank. For each of the frequency bands (ν), an autocorrelation matrix ({circumflex over (R)}ν) is determined, wherein parameters of the autocorrelation matrices ({circumflex over (R)}ν) are variably adjusted based on whether the at least one sinusoidal interference signal (Ak·ej(ωkt+φk), Ak·ej(μ·ωkΔt+φk)) is to be measured, identified, or removed and further based on at least one averaging. The autocorrelation matrices ({circumflex over (R)}ν) are jointly utilized for one or more of measuring, identifying, or removing the at least one sinusoidal interference signal (Ak·ej(ωkt+φk), Ak·ej(μ·ωkΔt+φk)) in the noise signal (w(t), w(μ·Δt)).
    • 提供了一种用于在噪声信号(w)中测量,识别和去除至少一个正弦干扰信号(Ak·ej(ωkt+&phgr; k),Ak·ej(μ·ωk&Dgr; t +&phgr; k) (t),w(μ·&Dgr; t))。 要测量的频率范围通过快速傅里叶变换(FFT)滤波器组分成多个频带(&ngr)。 对于每个频带(&ngr;),确定自相关矩阵({R(R)}&ngr)),其中基于(R)}&ngr;)的自相关矩阵的参数({ 是否要至少测量,识别或去除至少一个正弦干扰信号(Ak·ej(ωkt+&phgr; k),Ak·ej(μ·ωk&Dgr; t +&phgr; k)) 一个平均。 自相关矩阵((R)}&ngr;)中的一个或多个共同用于测量,识别或去除至少一个正弦干扰信号(Ak·ej(ωkt+&phgr; k),Ak·ej (μ·ωk&Dgr; t +&phgr; k))的噪声信号(w(t),w(μ·&Dgr; t))。
    • 15. 发明申请
    • Method and Device for Measuring Phase Noise
    • 测量相位噪声的方法和装置
    • US20100048143A1
    • 2010-02-25
    • US12301966
    • 2008-02-07
    • Wolfgang WendlerAlexander RothHagen Eckert
    • Wolfgang WendlerAlexander RothHagen Eckert
    • H04B17/00
    • G01R29/26
    • A method and a device for measuring the phase noise of a signal registers the measurement signal (V) with a given measurement frequency (f1) and with a superimposed phase noise (f1(t)), divides the measurement signal (V) into a first and second measurement signal (V1′, V2′), derives a first signal (V1) with a first frequency ((f1+f1(t))/N) reduced relative to the measurement frequency (f1) and the superimposed phase noise (f1(t)) and a second signal (V2) with a second frequency ((f1+f1(t))/M) reduced relative to the measurement frequency (f1) and the superimposed phase noise (f1(t)), determines a third signal (V3) with a third frequency (f3(t)) compensated by the measurement frequency (f1) relative to the first frequency ((f1+f1(t))/N) of the first signal (V1) and a fourth signal (V4) with a fourth frequency (f4(t)) compensated by the measurement frequency (f1) relative to the second frequency ((f1+f1(t))/M) of the second signal (V2) and determines a correlation spectrum from the third and fourth signal (V3, V4). The frequencies of the third and fourth signal (V3, V4) come to be disposed in each case within the frequency range of the correlation spectrum as a result of the frequency division of the frequency (f1+f1(t)) of the first and second measurement signal (V1′, V2′).
    • 用于测量信号的相位噪声的方法和装置以给定的测量频率(f1)和叠加的相位噪声(f1(t))寄存测量信号(V),将测量信号(V)分成 第一和第二测量信号(V1',V2')导出相对于测量频率(f1)减小的第一频率((f1 + f1(t))/ N)的第一信号(V1)和叠加的相位噪声 (f1(t))和具有第二频率((f1 + f1(t))/ M)的第二信号(V2)相对于测量频率(f1)和叠加相位噪声(f1(t))减小, 以相对于第一信号(V1)的第一频率((f1 + f1(t))/ N)的测量频率(f1)补偿第三频率(f3(t))的第三信号(V3) 相对于第二信号(V2)的第二频率((f1 + f1(t))/ M),通过测量频率(f1)补偿具有第四频率(f4(t))的第四信号(V4) 来自t的相关谱 第四和第四信号(V3,V4)。 第三和第四信号(V3,V4)的频率作为第一和第三信号频率(f1 + f1(t))分频的结果而在相关频谱的频率范围内被布置在每种情况下, 第二测量信号(V1',V2')。
    • 18. 发明授权
    • Method and system for the detection and/or removal of sinusoidal interference signals in a noise signal
    • 用于在噪声信号中检测和/或去除正弦干扰信号的方法和系统
    • US07957940B2
    • 2011-06-07
    • US12430377
    • 2009-04-27
    • Gregor FeldhausHagen Eckert
    • Gregor FeldhausHagen Eckert
    • H04B15/00
    • H04L25/0206G01R23/16G01R29/26H04B1/1027
    • A method for removing sinusoidal interference signals from a noise signal. The method includes transforming a measured signal (x(t), x(μ·Δt)), which is composed of a limited number of sinusoidal interference signals (Ak·ej(ωkt+φk), Ak·ej(ωkμ·Δt+φk)) and a white noise signal (w(t), w(μ·Δt)), into a subspace containing noise components and a subspace containing interference-signal components, and forming the spectrum of only the noise signal using the subspace containing the noise components. The entire frequency range is split into several frequency bands (ν), in which each measured signal (x(t), x(μ·Δt)) consists of a limited number (p(ν)) of sinusoidal interference signals and a white noise signal.
    • 一种从噪声信号中去除正弦干扰信号的方法。 该方法包括:将由有限数量的正弦干涉信号(Ak·ej(ωkt+&phgr; k)),Ak·ej(ω)和...组成的测量信号(x(t),x(μ·Dgr; t) ωkμ·&Dgr; t +&phgr; k))和白噪声信号(w(t),w(μ·&Dgr; t))转换成包含噪声分量的子空间和包含干扰信号分量的子空间, 仅使用包含噪声分量的子空间的噪声信号的频谱。 整个频率范围分为几个频带(&ngr;),其中每个测量信号(x(t),x(μ·&Dgr; t))由有限数量(p(&ngr))的正弦干扰 信号和白噪声信号。
    • 20. 发明申请
    • Method and system for noise measurement with combinable subroutines for the mesurement, identificaiton and removal of sinusoidal interference signals in a noise signal
    • 噪声测量方法和系统,可组合子程序用于测量,识别和消除噪声信号中的正弦干扰信号
    • US20060195501A1
    • 2006-08-31
    • US11333793
    • 2006-01-17
    • Gregor FeldhausHagen Eckert
    • Gregor FeldhausHagen Eckert
    • G06F17/14
    • G01R29/26
    • A method combines, within a system for noise measurement, subroutines for the measurement, identification and removal of sinusoidal interference signals (Ak·ej(ωkt+φk), Ak·ej(μ·ωkΔt+φk)) in a noise signal (w(t), w(ν·Δt)). In this context, the procedural stage (S10, S110, S220) of splitting the frequency range (ν) to be measured into several frequency bands (ν) via an FFT filter bank (1) and the procedural stage (S20, S120, S230) of determining autocorrelation matrices ({circumflex over (R)}ν) respectively associated with the frequency bands (ν) are implemented jointly for the respectively selected subroutines of measurement, identification and removal of sinusoidal interference signals (Ak·ej(ωkt+φk), Ak·ej(μ·ωkΔt+φk)) in a noise signal (w(t), w(ν·Δt)). The parameters of the autocorrelation matrices ({circumflex over (R)}ν) are adjusted in a variable manner dependent upon the respectively selected subroutine(s) and upon the required result quality.
    • 一种方法在用于噪声测量的系统内组合用于测量,识别和去除正弦干扰信号的子程序(A&lt; S&gt;&lt; SUB2&gt; > k t + phi /SUB>.ej(mu.omegak Deltat + phi 噪声信号(w(t),w(nu.Deltat))中)。 在本文中,将通过FFT滤波器组(1)和程序级(S 20)将要测量的频率范围(nu)分割成若干频带(nu)的程序级(S10,S110,S220) 分别与分别与频带(nu)相关联的自相关矩阵(R sub)的确定的自适应矩阵(N 120)的S1 120,S 230)被共同地用于分别选择的正弦干扰信号的测量,识别和去除的子程序 e> j j <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k k 在噪声信号(w(t))中 > ),w(nu.Deltat))。 根据分别选择的子程序和所需的结果质量,以可变的方式调整自相关矩阵(R >NU )的参数。