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公开(公告)号：US20160202347A1
公开(公告)日：2016-07-14
申请号：US14910786
申请日：2014-07-08
IPC分类号： G01S7/35 , G01F23/284
CPC分类号： G01S7/352 , G01F23/284 , G01S7/354 , G01S7/40 , G01S13/343 , G01S13/88
摘要： A radar measurement apparatus works according to the FMCW principle and includes a radar transmission unit, and a radar receiving unit, which is designed to receive a radar received signal reflected on a surface of the medium or other target in a pipe or tube, to convert the received signal into an intermediate frequency signal by mixing with the transmission signal, or a signal derived therefrom, and based on an intermediate signal to determine distance to the surface of the medium or other target. The radar receiving unit applies a phase correction to the intermediate signal produces a phase corrected, intermediate frequency signal, wherein the phase correction lessens or removes a dispersion dependent phase fraction in the phase of the intermediate signal and adds a non-dispersion effects dependent phase fraction. The radar receiving unit is designed based on the phase corrected intermediate signal to determine the target frequency components in the intermediate frequency signal and based on the target frequency components to determine distance to the surface of the medium or other radar.
摘要翻译： 雷达测量装置根据FMCW原理工作，并包括雷达传输单元和雷达接收单元，其被设计为接收在管或管中介质或其他目标表面上反射的雷达接收信号，以转换 通过与传输信号或从其导出的信号混合而将接收的信号转换成中频信号，并且基于中间信号来确定到介质或其它目标的表面的距离。 雷达接收单元对中间信号进行相位校正，产生相位校正的中频信号，其中相位校正减轻或去除中间信号相位中的相关分散相位分数，并且增加非分散效应相关分数 。 雷达接收单元是基于相位校正的中间信号来设计的，以确定中频信号中的目标频率分量，并且基于目标频率分量来确定到介质或其他雷达表面的距离。
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公开(公告)号：US10422683B2
公开(公告)日：2019-09-24
申请号：US15503507
申请日：2015-07-16
发明人： Thomas Blodt , Winfried Mayer , Christian Seiler
IPC分类号： G01S7/03 , G01F23/284 , G01S7/28 , G01S7/292 , G01S13/88
摘要： An apparatus for determining the fill level of a fill substance in a container, comprising at least one antenna element. The at least one antenna element has a hollow conductor, wherein there is arranged at a first end region of the hollow conductor a coupling element for the out-coupling of transmission signals and for the in-coupling of received signals, wherein there is arranged at a second end region of the hollow conductor a radiating element directed toward the fill substance, a transmitting/receiving unit having a signal generator for producing the transmission signals. The transmitting/receiving unit determines the fill level of the fill substance in the container based on the travel time of the transmission- and received signals. The connecting line and/or the hollow conductor are/is embodied in such a way that the transmission signals are transmitted time delayed, so that the distance between the at least one antenna element and the surface of the fill substance is virtually increased and the received signal is isolated in time from disturbances of the transmitting/receiving unit, which arise in the case of producing the transmission signals.
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公开(公告)号：US10209346B2
公开(公告)日：2019-02-19
申请号：US14910786
申请日：2014-07-08
IPC分类号： G01S7/35 , G01S7/40 , G01S13/34 , G01S13/88 , G01F23/284
摘要： A radar measurement apparatus works according to the FMCW principle and includes a radar transmission unit, and a radar receiving unit, which is designed to receive a radar received signal reflected on a surface of the medium or other target in a pipe or tube, to convert the received signal into an intermediate frequency signal by mixing with the transmission signal, or a signal derived therefrom, and based on an intermediate signal to determine distance to the surface of the medium or other target. The radar receiving unit applies a phase correction to the intermediate signal produces a phase corrected, intermediate frequency signal, wherein the phase correction lessens or removes a dispersion dependent phase fraction in the phase of the intermediate signal and adds a non-dispersion effects dependent phase fraction. The radar receiving unit is designed based on the phase corrected intermediate signal to determine the target frequency components in the intermediate frequency signal and based on the target frequency components to determine distance to the surface of the medium or other radar.
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公开(公告)号：US10018495B2
公开(公告)日：2018-07-10
申请号：US14649042
申请日：2013-11-25
发明人： Winfried Mayer , Roland Grozinger , Qi Chen
IPC分类号： G01F23/284
CPC分类号： G01F23/284
摘要： A radar-based fill-level measuring device comprising at least one synthesizer circuit having a plurality of circuit components for producing phase controlled microwave signals for a travel-time measurement and at least three electrical potentials for supplying the synthesizer circuit, wherein the synthesizer circuit has at least three circuit groups. Each circuit component is associated with at least one circuit group, wherein each of the at least three circuit groups is fed by means of at least one potential difference between two of the at least three different potentials.
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公开(公告)号：US20160327422A1
公开(公告)日：2016-11-10
申请号：US15104015
申请日：2014-11-14
发明人： Rolf Gluth , Winfried Mayer
IPC分类号： G01F23/284 , G01S7/282 , G01S13/22
CPC分类号： G01F23/284 , G01S7/024 , G01S7/282 , G01S7/285 , G01S13/103 , G01S13/22 , G01S13/282 , G01S13/30 , G01S13/88 , G01S13/90
摘要： The invention relates to a frequency generator for generating two pulse repetition frequency signals with slightly different frequencies for a radar measuring device. The frequency generator comprises an oscillator, which generates an oscillator signal, a first signal path for generating a first pulse repetition frequency signal from the oscillator signal, and a second signal path for generating a second pulse repetition frequency signal from the oscillator signal. The first signal path comprises a frequency divider or a first DDS module which is designed to generate a first frequency signal on the basis of the oscillator signal, a first mixer which is designed to upmix the first frequency signal or a signal derived therefrom to an intermediate frequency band and to generate a first intermediate frequency signal, and a first ceramic bandpass filter which is designed to filter out a selected frequency component of the first intermediate frequency signal and to generate a bandpass-filtered first intermediate frequency signal. The second signal path comprises a second DDS component which is designed to generate a second frequency signal on the basis of the oscillator signal, said second frequency signal differing from the first frequency signal by a specified frequency offset, a second mixer which is designed to upmix the second frequency signal or a signal derived therefrom to an intermediate frequency band and to generate a second intermediate frequency signal, and a second ceramic bandpass filter which is designed to filter out a selected frequency component of the second intermediate frequency signal and to generate a bandpass-filtered second intermediate frequency signal.
摘要翻译： 本发明涉及一种频率发生器，用于为雷达测量装置产生具有稍微不同频率的两个脉冲重复频率信号。 频率发生器包括产生振荡器信号的振荡器，用于从振荡器信号产生第一脉冲重复频率信号的第一信号路径和用于从振荡器信号产生第二脉冲重复频率信号的第二信号路径。 第一信号路径包括分频器或第一DDS模块，其被设计为基于振荡器信号产生第一频率信号，第一混频器被设计为将第一频率信号或从其导出的信号上混合到中间 并产生第一中频信号;以及第一陶瓷带通滤波器，其被设计为滤除所选择的第一中频信号的频率分量，并产生带通滤波的第一中频信号。 第二信号路径包括第二DDS分量，其被设计为基于振荡器信号产生第二频率信号，所述第二频率信号与第一频率信号不同于指定的频率偏移，第二混频器被设计为混合 第二频率信号或从其导出的信号到中频带并产生第二中频信号，以及第二陶瓷带通滤波器，其被设计为滤除所选择的第二中频信号的频率分量并产生带通 过滤的第二中频信号。
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公开(公告)号：US20160315628A1
公开(公告)日：2016-10-27
申请号：US15132678
申请日：2016-04-19
CPC分类号： H03L7/23 , G01F23/284 , G01S7/35 , G01S13/345 , G01S13/88 , H03L7/099 , H03L7/1976 , H03L2207/06
摘要： Described is a frequency generator for producing a frequency ramp. The frequency generator includes a first voltage controlled oscillator, which has a plurality of switchable sub-bands and is designed to produce a first frequency signal, wherein a switching from one sub-band to a neighboring sub-band occurs at predetermined first switching locations, as well as a second voltage controlled oscillator, which has a plurality of switchable sub-bands and is designed to produce a second frequency signal. A switching from one sub-band to a neighboring sub-band occurs at predetermined second switching locations. The sub-bands of the second voltage controlled oscillator are arranged offset in frequency relative to the sub-bands of the first voltage controlled oscillator. The frequency generator is designed to switch either the first frequency signal or the second frequency signal through to the output of the electronic switch element, and to switch the electronic switch element such that during the producing of the frequency ramp alternately either the first frequency signal or the second frequency signal is switched through to the output of the electronic switch element, wherein, in each case, when at one of the voltage controlled oscillators the switching between two neighboring sub-bands is occurring, the frequency signal produced by the respectively other voltage controlled oscillator is switched through to the output of the electronic switch element.
摘要翻译： 描述了用于产生频率斜坡的频率发生器。 频率发生器包括第一压控振荡器，其具有多个可切换子带，并被设计为产生第一频率信号，其中在预定的第一切换位置发生从一个子带到相邻子带的切换， 以及第二压控振荡器，其具有多个可切换子带并被设计为产生第二频率信号。 在预定的第二切换位置发生从一个子带到相邻子带的切换。 第二压控振荡器的子带被布置为相对于第一压控振荡器的子带的频率偏移。 频率发生器被设计成将第一频率信号或第二频率信号切换到电子开关元件的输出，并且切换电子开关元件，使得在频率斜坡的交替产生期间，第一频率信号或 第二频率信号被切换到电子开关元件的输出，其中，在每种情况下，当在一个压控振荡器处于两个相邻子带之间的切换时，发生由相应的其它电压产生的频率信号 受控振荡器切换到电子开关元件的输出端。
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公开(公告)号：US10295391B2
公开(公告)日：2019-05-21
申请号：US15104015
申请日：2014-11-14
发明人： Rolf Gluth , Winfried Mayer
IPC分类号： G01S7/02 , G01S13/10 , G01S13/22 , G01S13/28 , G01S13/30 , G01S13/88 , G01S13/90 , G01S7/282 , G01S7/285 , G01F23/284
摘要： The invention relates to a frequency generator for generating two pulse repetition frequency signals with slightly different frequencies for a radar measuring device. The frequency generator comprises an oscillator, which generates an oscillator signal, a first signal path for generating a first pulse repetition frequency signal from the oscillator signal, and a second signal path for generating a second pulse repetition frequency signal from the oscillator signal. The first signal path comprises a frequency divider or a first DDS module which is designed to generate a first frequency signal on the basis of the oscillator signal, a first mixer which is designed to upmix the first frequency signal or a signal derived therefrom to an intermediate frequency band and to generate a first intermediate frequency signal, and a first ceramic bandpass filter which is designed to filter out a selected frequency component of the first intermediate frequency signal and to generate a bandpass-filtered first intermediate frequency signal. The second signal path comprises a second DDS component which is designed to generate a second frequency signal on the basis of the oscillator signal, said second frequency signal differing from the first frequency signal by a specified frequency offset, a second mixer which is designed to upmix the second frequency signal or a signal derived therefrom to an intermediate frequency band and to generate a second intermediate frequency signal, and a second ceramic bandpass filter which is designed to filter out a selected frequency component of the second intermediate frequency signal and to generate a bandpass-filtered second intermediate frequency signal.
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公开(公告)号：US09958310B2
公开(公告)日：2018-05-01
申请号：US14890717
申请日：2014-04-22
发明人： Harald Faber , Winfried Mayer , Alexey Malinovskiy
IPC分类号： G01S13/88 , G01F23/284 , G01F23/00 , G01S13/34 , G01S7/35
CPC分类号： G01F23/284 , G01F23/0061 , G01F23/0069 , G01S13/34 , G01S13/343 , G01S13/345 , G01S13/88 , G01S2007/356
摘要： A method for determining frequency components of a discrete time signal, comprising steps as follows: transforming the discrete time signal into the frequency domain by means of a fast Fourier transformation, wherein a frequency spectrum is obtained as a sequence of frequency sample values, detecting peaks in the frequency spectrum, introducing at least one additional frequency support point in the vicinity of a detected peak, determining a frequency amplitude at the at least one additional frequency support point by means of the Goertzel algorithm, and determining the position of the peak maximum of the detected peak by applying both the frequency sample values delivered by the fast Fourier transformation as well as also the frequency amplitude at the at least one additional frequency support point.
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公开(公告)号：US20170241826A1
公开(公告)日：2017-08-24
申请号：US15503507
申请日：2015-07-16
发明人： Thomas Blodt , Winfried Mayer , Christian Seiler
IPC分类号： G01F23/284 , G01S13/88 , G01S7/292 , G01S7/03 , G01S7/28
摘要： An apparatus for determining the fill level of a fill substance in a container, comprising at least one antenna element. The at least one antenna element has a hollow conductor, wherein there is arranged at a first end region of the hollow conductor a coupling element for the out-coupling of transmission signals and for the in-coupling of received signals, wherein there is arranged at a second end region of the hollow conductor a radiating element directed toward the fill substance, a transmitting/receiving unit having a signal generator for producing the transmission signals. The transmitting/receiving unit determines the fill level of the fill substance in the container based on the travel time of the transmission- and received signals. The connecting line and/or the hollow conductor are/is embodied in such a way that the transmission signals are transmitted time delayed, so that the distance between the at least one antenna element and the surface of the fill substance is virtually increased and the received signal is isolated in time from disturbances of the transmitting/receiving unit, which arise in the case of producing the transmission signals.
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公开(公告)号：US20160097671A1
公开(公告)日：2016-04-07
申请号：US14890717
申请日：2014-04-22
发明人： Harald Faber , Winfried Mayer , Alexey Malinovskiy
IPC分类号： G01F23/284 , G01S13/34 , G01F23/00
CPC分类号： G01F23/284 , G01F23/0061 , G01F23/0069 , G01S13/34 , G01S13/343 , G01S13/345 , G01S13/88 , G01S2007/356
摘要： A method for determining frequency components of a discrete time signal, comprising steps as follows: transforming the discrete time signal into the frequency domain by means of a fast Fourier transformation, wherein a frequency spectrum is obtained as a sequence of frequency sample values, detecting peaks in the frequency spectrum, introducing at least one additional frequency support point in the vicinity of a detected peak, determining a frequency amplitude at the at least one additional frequency support point by means of the Goertzel algorithm, and determining the position of the peak maximum of the detected peak by applying both the frequency sample values delivered by the fast Fourier transformation as well as also the frequency amplitude at the at least one additional frequency support point.
摘要翻译： 一种用于确定离散时间信号的频率分量的方法，包括以下步骤：通过快速傅里叶变换将离散时间信号变换成频域，其中获得频谱作为频率采样值序列，检测峰值 在所述频谱中，在检测到的峰值附近引入至少一个附加频率支持点，通过所述Goertzel算法确定所述至少一个附加频率支持点处的频率振幅，以及确定所述峰值最大值的位置 通过应用通过快速傅里叶变换递送的频率采样值以及在至少一个附加频率支持点处的频率振幅来检测峰值。
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