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公开(公告)号：US20190273502A1
公开(公告)日：2019-09-05
申请号：US16276696
申请日：2019-02-15
摘要： A radar device comprises a data communication input interface configured to receive a data clock signal for a data bus and an analog to digital converter configured to sample a signal at time instants given by a sampling clock signal. In an implementation, a sampling clock generation circuit is configured to generate the sampling clock signal based on the data clock signal.
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公开(公告)号：US20190129004A1
公开(公告)日：2019-05-02
申请号：US16170924
申请日：2018-10-25
发明人： Herbert JAEGER
IPC分类号： G01S7/35
摘要： A radar device includes a radar reception circuit configured to provide an analog radar signal by means of a radio frequency (RF) radar signal received by an antenna being downconverted into a baseband frequency. The radar reception circuit further includes an analog-to-digital converter, to which the analog radar signal is fed and which is configured to digitize said analog radar signal and to provide it as a digital radar signal, and also a digital multiplier configured to multiply the digital radar signal by a digital window signal, as a result of which a windowed radar signal is provided. A window generator is configured to calculate the digital window signal by evaluating one or more polynomials. The radar device further includes a processor configured to further process a plurality of signal blocks of the windowed radar signal, signal block by signal block.
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公开(公告)号：US20190204413A1
公开(公告)日：2019-07-04
申请号：US16237148
申请日：2018-12-31
发明人： Herbert JAEGER , Clemens PFEFFER
CPC分类号： G01S7/4004 , G01S7/35 , G01S7/352 , G01S7/4021 , G01S13/343 , G01S2007/358 , H04L27/36
摘要： The present disclosure relates to a concept for calibrating an IQ modulator. A calibration method comprises setting one or more control values of the IQ modulator corresponding to a desired constellation point of a constellation diagram to generate an IQ modulating signal; mixing the IQ modulating signal with a carrier signal to generate an IQ modulated transmit signal; transmitting the IQ modulated transmit signal towards a predefined object at a predefined location; receiving a reflection of the IQ modulated transmit signal from the predefined object; mixing the received reflection of the IQ modulated transmit signal with the carrier signal to generate a down-converted receive signal; comparing amplitude and/or phase of the down-converted receive signal with the desired constellation point of the constellation diagram; and adjusting the one or more control values of the IQ modulator until a deviation between the amplitude and/or phase of the received down-converted signal and the desired constellation point falls below a predefined threshold.
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公开(公告)号：US20170031005A1
公开(公告)日：2017-02-02
申请号：US15196560
申请日：2016-06-29
发明人： Herbert JAEGER , Clemens Pfeffer
CPC分类号： G01S7/4004 , G01S7/35 , G01S7/352 , G01S7/4021 , G01S13/343 , G01S2007/358 , H04L27/36
摘要： The present disclosure relates to a concept for calibrating an IQ modulator. A calibration method comprises setting one or more control values of the IQ modulator corresponding to a desired constellation point of a constellation diagram to generate an IQ modulating signal; mixing the IQ modulating signal with a carrier signal to generate an IQ modulated transmit signal; transmitting the IQ modulated transmit signal towards a predefined object at a predefined location; receiving a reflection of the IQ modulated transmit signal from the predefined object; mixing the received reflection of the IQ modulated transmit signal with the carrier signal to generate a down-converted receive signal; comparing amplitude and/or phase of the down-converted receive signal with the desired constellation point of the constellation diagram; and adjusting the one or more control values of the IQ modulator until a deviation between the amplitude and/or phase of the received down-converted signal and the desired constellation point falls below a predefined threshold.
摘要翻译： 本公开涉及用于校准IQ调制器的概念。 校准方法包括设置与星座图的期望星座点相对应的IQ调制器的一个或多个控制值以产生IQ调制信号; 将IQ调制信号与载波信号混合以产生IQ调制的发射信号; 在预定位置向所述预定义对象发送所述IQ调制的发送信号; 从所述预定对象接收所述IQ调制的发射信号的反射; 将接收到的IQ调制的发射信号的反射与载波信号混合以产生下变频的接收信号; 将下变频接收信号的幅度和/或相位与星座图的期望星座点进行比较; 以及调整IQ调制器的一个或多个控制值，直到所接收的下变频信号和期望星座点的振幅和/或相位之间的偏差降到预定阈值以下。
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公开(公告)号：US20190068295A1
公开(公告)日：2019-02-28
申请号：US16174867
申请日：2018-10-30
发明人： Karl DOMINIZI , Oliver FRANK , Herbert JAEGER , Herbert KNAPP , Hao LI , Florian STARZER , Rainer STUHLBERGER , Jonas WURSTHORN
摘要： One exemplary embodiment of the present invention relates to a circuit that includes at least one RF signal path for an RF signal and at least one power sensor, which is coupled to the RF signal path and configured to generate a sensor signal representing the power of the RF signal during normal operation of the circuit. The circuit further includes a circuit node for receiving an RF test signal during calibration operation of the circuit. The circuit node is coupled to the at least one power sensor, so that the at least one power sensor receives the RF test signal additionally or alternatively to the RF signal and generates the sensor signal as representing the power of the RF test signal.
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公开(公告)号：US20180284258A1
公开(公告)日：2018-10-04
申请号：US15944902
申请日：2018-04-04
发明人： Andre ROGER , Herbert JAEGER , Farhan Bin KHALID , Romain YGNACE
CPC分类号： G01S13/872 , G01S7/352 , G01S13/003 , G01S13/325 , G01S13/343 , G01S13/87 , G01S13/931 , G01S2007/356
摘要： A method for processing radar signals includes emitting a first radar signal via a transmitting antenna of a first radar unit, where the first radar signal is phase modulated using a first code and a first frequency offset is added to at least a portion of the first radar signal, and emitting a second radar signal via a transmitting antenna of a second radar unit, where the second radar signal is phase modulated using a second code. The first code and the second code are orthogonal to each other and the first radar unit and the second radar unit are loosely coupled with each other. The method further includes receiving a combined radar signal via a receiving antenna of the first radar unit, where the combined radar signal comprises a reflections of the first and the second radar signals, and processing the combined radar signal at the first radar unit.
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