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    • 1. 发明授权
    • Method and measuring device for suppressing interference signals
    • 用于抑制干扰信号的方法和测量装置
    • US09558154B2
    • 2017-01-31
    • US14004435
    • 2012-05-03
    • Gregor FeldhausAlexander Roth
    • Gregor FeldhausAlexander Roth
    • G06F17/00G01R23/16G01R23/18G01R31/28
    • G06F17/00G01R23/16G01R23/18G01R31/2837
    • A measuring device for suppressing an interference signal contains a mixer, an analog-digital converter, a scaling device and a substitution device. The mixer is embodied to mix a first signal with a first intermediate frequency and to mix a second signal with a second intermediate frequency. The analog-digital converter is embodied to digitize the first signal mixed with the first intermediate frequency to form a first test signal and to digitize the second signal mixed with the second intermediate frequency to form a second test signal is embodied to displace at least the first test signal and/or the second test signal in its frequency in such a manner that they provide a common mid-frequency. The substitution device is embodied to combine the first test signal and the second test signal with a removal of interference-signal peak-value regions which correspond to the interference signal, to form a combined test signal.
    • 用于抑制干扰信号的测量装置包括混频器,模拟数字转换器,缩放装置和替换装置。 混合器被实现为将第一信号与第一中频混合并且将第二信号与第二中频混合。 模拟数字转换器被实现为使与第一中间频率混合的第一信号数字化,以形成第一测试信号,并且将与第二中间频率混合的第二信号数字化,以形成第二测试信号, 测试信号和/或其频率的第二测试信号,使得它们提供公共的中频。 替代装置被实施为将第一测试信号和第二测试信号组合起来,去除与干扰信号对应的干扰信号峰值区域,以形成组合的测试信号。
    • 2. 发明授权
    • Evaluation unit and a method for demodulation of OFDM data
    • 评估单元和解调OFDM数据的方法
    • US08837565B2
    • 2014-09-16
    • US13819944
    • 2011-11-15
    • Susanne HirschmannMartin WeissGregor Feldhaus
    • Susanne HirschmannMartin WeissGregor Feldhaus
    • H04B17/00H04L27/26H04L27/00
    • H04L27/2666H04B17/00H04B17/23H04L27/0012H04L27/2602H04L27/2627H04L27/2655
    • The present disclosure provides an evaluation unit which includes a central data-processing unit, at least one storage unit and an allocation unit, wherein the allocation unit and the at least one storage unit (3) are connected to the central data-processing unit. The central data-processing unit loads at least one OFDM signal from the at least one storage unit and transfers this to the allocation unit. The allocation unit displays the individual signal spaces of the OFDM symbols of the at least one OFDM signal in a constellation diagram and in a frame-output matrix in such a manner that it is possible to allocate via the diagrams at which signal spaces data symbols and/or pilot symbols and/or zero symbols and/or don't care symbols are present and with which modulation type the data symbols and/or pilot symbols are modulated.
    • 本公开提供了一种评估单元,其包括中央数据处理单元,至少一个存储单元和分配单元,其中所述分配单元和所述至少一个存储单元(3)连接到所述中央数据处理单元。 中央数据处理单元从至少一个存储单元加载至少一个OFDM信号,并将其传送到分配单元。 分配单元以星座图和帧输出矩阵中的方式显示至少一个OFDM信号的OFDM符号的各个信号空间,使得可以经由图中的信号空间分配数据符号和 /或导频符号和/或零符号和/或不关心符号,并且调制类型的数据符号和/或导频符号被调制。
    • 3. 发明授权
    • Method and device for performing spectrum analysis of a wanted signal or noise signal
    • 用于对有用信号或噪声信号进行频谱分析的方法和装置
    • US08768638B2
    • 2014-07-01
    • US11663939
    • 2005-08-26
    • Gregor FeldhausHagen Eckert
    • Gregor FeldhausHagen Eckert
    • G01R23/16G06F17/14
    • G01R23/167G01R23/18
    • A method and device for performing spectrum analysis of a signal in a plurality of frequency bands with respective different frequency resolutions. The method includes a data acquisition step and a subsequent data evaluation step for every frequency band. The data acquisition step and the subsequent data evaluation step proceeds cyclically and continuously for every frequency band of the spectrum analysis. The corresponding device for performing spectrum analysis of a signal cyclically stores a scanning sequence of the signal for every frequency band in one circular buffer each. A discrete Fourier transformer uses the cyclically stored scanning sequences to calculate the spectral values pertaining to the respective frequency band.
    • 一种用于对具有不同频率分辨率的多个频带中的信号进行频谱分析的方法和装置。 该方法包括用于每个频带的数据获取步骤和随后的数据评估步骤。 对于频谱分析的每个频带,数据采集步骤和随后的数据评估步骤循环地且连续地进行。 用于执行信号的频谱分析的相应装置将每个频带的信号的扫描序列循环地存储在一个循环缓冲器中。 离散傅里叶变换器使用循环存储的扫描序列来计算与相应频带有关的频谱值。
    • 4. 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
    • US07840385B2
    • 2010-11-23
    • US11966366
    • 2007-12-28
    • Gregor FeldhausHagen Eckert
    • Gregor FeldhausHagen Eckert
    • H04B15/00
    • H04L25/0206G01R23/16G01R29/26H04B1/1027
    • A system for the identification of sinusoidal interference signals from a noise signal is provided. The system includes a unit for the estimation (51, 52, . . . , 5NFFT) of an autocorrelation matrix ({circumflex over (R)}v) of a measured signal (x(t), x(μ·Δt)), composed from the sinusoidal interference signals (Ak·ej(ωkt+φk), Ak·ej(ωkμ·Δt+φk)) and the noise signal (w(t), w(μ·Δt)), a unit (81, 82, . . . , 8NFFT) for frequency estimation, and a unit (91, 92, . . . , 9NFFT) for power-level determination of the spectral lines associated with the sinusoidal interference signals (Ak·ej(ωkt+φk), Ak·ej(ωkμ·Δt+φk)) A Fast Fourier Transform filter bank (1) is additionally provided for the generation of several frequency bands (v) for the measured signal (x(t), x(μ·Δt)), composed of the sinusoidal interference signals (Ak·ej(ωkt+φk), Ak·ej(ωkμ·Δt+φk)) and the noise signal (w(t), w(μ·Δt)).
    • 提供了一种用于从噪声信号识别正弦干扰信号的系统。 该系统包括用于估计(51,52,...,5NFFT)的测量信号(x(t),x(μ·&Dgr; t)的自相关矩阵((R)} v) )),由正弦干扰信号(Ak·ej(ωkt+&phgr; k)),Ak·ej(ωkμ·&Dgr; t +&phgr; k))和噪声信号(w(t),w &Dgr; t)),用于频率估计的单元(81,82,...,8NFFT)以及用于与正弦曲线相关联的谱线的功率电平确定的单元(91,92,...,9NFFT) 干扰信号(Ak·ej(ωkt+&phgr; k),Ak·ej(ωkμ·&Dgr; t +&phgr; k))另外提供快速傅里叶变换滤波器组(1),用于产生几个频带 )由正弦干扰信号(Ak·ej(ωkt+&phgr; k)),Ak·ej(ωkμ·&Dgr; t +&phgr)组成的测量信号(x(t),x(μ·&Dgr; t) ; k))和噪声信号(w(t),w(μ·&Dgr; t))。
    • 6. 发明申请
    • Method and Device for Performing Spectrum Analysis of a Wanted Signal or Noise Signal
    • 用于进行信号或噪声信号频谱分析的方法和装置
    • US20070250558A1
    • 2007-10-25
    • US11663939
    • 2005-08-26
    • Gregor FeldhausHagen Eckert
    • Gregor FeldhausHagen Eckert
    • G06F17/14
    • G01R23/167G01R23/18
    • A method and device for performing spectrum analysis of a signal in a plurality of frequency bands with respective different frequency resolutions. Said method comprises a data acquisition step and a subsequent data evaluation step for every frequency band. The data acquisition step and the subsequent data evaluation step proceeds cyclically and continuously for every frequency band of the spectrum analysis. The corresponding device for performing spectrum analysis of a signal cyclically stores a scanning sequence o the signal for every frequency band in one circular buffer each. A discrete Fourier transformer uses the cyclically stored scanning sequences to calculate the spectral values pertaining to the respective frequency band.
    • 一种用于对具有不同频率分辨率的多个频带中的信号进行频谱分析的方法和装置。 所述方法包括用于每个频带的数据获取步骤和随后的数据评估步骤。 对于频谱分析的每个频带,数据采集步骤和随后的数据评估步骤循环地且连续地进行。 用于执行信号的频谱分析的相应装置将每个频带的信号的扫描序列循环存储在一个循环缓冲器中。 离散傅里叶变换器使用循环存储的扫描序列来计算与相应频带有关的频谱值。
    • 8. 发明申请
    • EVALUATION UNIT AND A METHOD FOR DEMODULATION OF OFDM DATA
    • 评估单元和解调OFDM数据的方法
    • US20130163653A1
    • 2013-06-27
    • US13819944
    • 2011-11-15
    • Susanne HirschmannMartin WeissGregor Feldhaus
    • Susanne HirschmannMartin WeissGregor Feldhaus
    • H04B17/00
    • H04L27/2666H04B17/00H04B17/23H04L27/0012H04L27/2602H04L27/2627H04L27/2655
    • The present disclosure provides an evaluation unit which includes a central data-processing unit, at least one storage unit and an allocation unit, wherein the allocation unit and the at least one storage unit (3) are connected to the central data-processing unit. The central data-processing unit loads at least one OFDM signal from the at least one storage unit and transfers this to the allocation unit. The allocation unit displays the individual signal spaces of the OFDM symbols of the at least one OFDM signal in a constellation diagram and in a frame-output matrix in such a manner that it is possible to allocate via the diagrams at which signal spaces data symbols and/or pilot symbols and/or zero symbols and/or don't care symbols are present and with which modulation type the data symbols and/or pilot symbols are modulated.
    • 本公开提供了一种评估单元,其包括中央数据处理单元,至少一个存储单元和分配单元,其中所述分配单元和所述至少一个存储单元(3)连接到所述中央数据处理单元。 中央数据处理单元从至少一个存储单元加载至少一个OFDM信号,并将其传送到分配单元。 分配单元以星座图和帧输出矩阵中的方式显示至少一个OFDM信号的OFDM符号的各个信号空间,使得可以经由图中的信号空间分配数据符号和 /或导频符号和/或零符号和/或不关心符号,并且调制类型的数据符号和/或导频符号被调制。
    • 9. 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
    • US07840384B2
    • 2010-11-23
    • US11333772
    • 2006-01-17
    • Gregor FeldhausHagen Eckert
    • Gregor FeldhausHagen Eckert
    • H04B15/00
    • H04L25/0206G01R23/16G01R29/26H04B1/1027
    • A method and a system for the detection and/or removal of sinusoidal interference signals in/from a noise signal transforms a measured signal (x(t), x(μ·Δt)) composed of a limited number of sinusoidal interference signals (Ak·ej(ωkt+φk), Ak·ej(μ·ωkΔt+φk)) and a white noise signal (w(t), w(μ·Δt)) into a subspace containing its white noise components and a subspace containing its interference signal components. Following this, the individual sinusoidal interference signals (Ak·ej(ωkt+φk), Ak·ej(μ·ωkΔt+φk)) are determined using an estimation method within the subspace containing the noise components. The entire frequency range is split into several frequency bands (ν), in which the measured signal (x(t), x(μ·Δt)) consists of a limited number (p(ν)) of sinusoidal interference signals (Ak·ej(ωkt+φk), Ak·ej(μ·ωkΔt+φk)) and a white noise signal (w(t), w(μ·Δt)).
    • 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将由有限数量的正弦干扰信号组成的测量信号(x(t),x(μ·Dgr; t)) (w·t),w(μ·dG·t))和白噪声信号(w(t),w(μ·&Dgr; t))变换成子空间(Ak·ej(ωkt+&phgr; k),Ak·ej(μ·ωk&Dgr; t +&phgr; k) 包含其白噪声分量和包含其干扰信号分量的子空间。 接下来,使用包含噪声分量的子空间内的估计方法来确定各个正弦干扰信号(Ak·ej(ωkt+&phgr; k),Ak·ej(μ·ωk&Dgr; t +&phgr; k))。 整个频率范围分为几个频带(&ngr;),其中测量信号(x(t),x(μ·&Dgr; t))由有限数量(p(&ngr))的正弦干扰 信号(Ak·ej(ωkt+&phgr; k),Ak·ej(μ·ωk&Dgr; t +&phgr; k))和白噪声信号(w(t),w(μ·&Dgr; t))。