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1.发明公开公开(公告)号：US20240061078A1
公开(公告)日：2024-02-22
申请号：US18268092
申请日：2021-12-02
申请人： Symeo GmbH
发明人： Peter Gulden , Martin Vossiek , Johanna Geiß , Erik Sippel
IPC分类号： G01S7/40 , G01S13/931
CPC分类号： G01S7/4082 , G01S13/931
摘要： The disclosure relates to a method for calibrating at least one signal and/or system parameter of a wave-based measurement system, in particular radar measurement system. At least one receiving unit for receiving signals and an object scene assume several spatial positions relative to each other assume, wherein a relative positioning of the several positions to each other is known or determined, and at these several positions the signals are coherently detected by the at least one receiving unit, whereby a set of several coherent measurement signals is formed.
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公开(公告)号：US20210080541A1
公开(公告)日：2021-03-18
申请号：US16613102
申请日：2018-05-11
申请人： Symeo GmbH
发明人： Martin Vossiek , Michael Gottinger , Peter Gulden
摘要： Method for compensating for noise, in particular phase noise, in a primary radar system, wherein a first transmission signal with a first interfering component caused by the noise is transmitted by a transceiving unit, wherein at least one second transmission signal with a second interfering component caused by the noise is transmitted at the same time as or in a manner temporally overlapping the first transmission signal by the transceiving unit, wherein the transmission signals are such that, if the transmission signals are processed further and evaluated, phase and/or frequency shifts resulting from the interfering components are at least partially compensated for.
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公开(公告)号：US20240069152A1
公开(公告)日：2024-02-29
申请号：US18272077
申请日：2021-01-22
申请人： Symeo GmbH
发明人： Sunrita Poddar , Peter Gulden , Ilker Bayram
IPC分类号： G01S7/02 , G01S7/35 , G01S13/931
CPC分类号： G01S7/023 , G01S7/356 , G01S13/931
摘要： Techniques to improve the detection and mitigation of synchronous and asynchronous interference in radar signals. The corrupted received signals can be processed to reduce the effect of interference, while preserving existing targets. Various can use a two-step approach to (1) detect and mask the corrupted samples, and (2) recover the masked-out samples. The recovery step enforces sparsity of the existing targets and prevents target smearing, which is a common problem after interference mitigation. The sparsity enforcing recovery step can preserve small targets while successfully rejecting interference. The techniques do not require any prior knowledge of the parameters of the interfering radar.
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公开(公告)号：US11774551B2
公开(公告)日：2023-10-03
申请号：US16613099
申请日：2018-04-25
申请人： Symeo GmbH
发明人： Martin Vossiek , Peter Gulden , Michael Gottinger
摘要： A method for compensating for noise in a secondary radar system is described. The method includes, using a first transceiver, transmitting, in temporally overlapping manner, a first transmission signal containing a first interfering component and a second transmission signal containing a second interfering component, and compensating for at least one of phase shifts or frequency shifts resulting from the first and second interfering components by evaluation of the first and second transmission signals.
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公开(公告)号：US11002818B2
公开(公告)日：2021-05-11
申请号：US15779768
申请日：2016-10-27
申请人： SYMEO GmbH
发明人： Martin Vossiek , Peter Gulden , Fabian Kirsch
摘要： A wave-based method has at least two reference stations (1, 2) transmit signals (s1, s2; s3, s4). The signals are transmitted almost at the same time (S1, S2), are transmitted in the same frequency range, and are separable using a multiplexing method. At least one of the sending reference stations (1, 2), besides transmitting its own signal (s1, s2), also receives at least one signal (s2, s1) sent by another reference station (2, 1) at the same time and determines a time stagger (τ1) and/or a phase angle between its own transmission and the reception with high precision. At least one receiving station (7) which at least receives the signals (s1, s2) receives the signals (s3, s4) from at least two of the reference stations (1, 2). A system and stations perform the wave-based method.
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公开(公告)号：US20240045052A1
公开(公告)日：2024-02-08
申请号：US18256823
申请日：2021-12-01
申请人： Symeo GmbH
CPC分类号： G01S13/726 , G01S13/93 , G01S7/411 , G01S13/589
摘要： Detection points may be first observed over multiple radar frames. The observed detection points, which form the tracklets, can be used to form a segmentation of the present radar frame by associating the tracklats to at least one object-track, which represents at least one object based on at least one feature-parameter. Segmentation results from tracking of detection points over multiple radar frames (viz. utilizing tracking information) which is used for associating detection points to objects (segmentation-by-tracking). A two-level tracking approach can be implemented, in which for a present radar frame, (new) detection points are associated to tracklets, which may be seen as a first level, and then the tracklets are associated to object-tracks, which may be seen as a second level.
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公开(公告)号：US20240036183A1
公开(公告)日：2024-02-01
申请号：US17996600
申请日：2021-04-13
申请人： SYMEO GMBH
IPC分类号： G01S13/00 , G01S13/42 , G01S13/931
CPC分类号： G01S13/003 , G01S13/42 , G01S13/931
摘要： The invention describes a radar method for the coherent evaluation of radar signals in a radar system, in particular a multistatic radar system, wherein at least one or a plurality of received signals is/are received in several signal channels of an antenna arrangement, and wherein a synthetic received signal of a virtual transmitting and receiving antenna is generated using at least one composition model on the basis of the one or more received signals.
The invention further describes a radar system according to claim 9 as well as a use of the radar system according to claim 14.
The invention enables coherent evaluation of radar signals without the need to use a reciprocal signal propagation channel between the participating radar units of the radar system.-
公开(公告)号：US20230035002A1
公开(公告)日：2023-02-02
申请号：US17874584
申请日：2022-07-27
申请人： SYMEO GMBH
摘要： A method collects radar signals reflected from particles distributed by an emission device. A three-dimensional range-angle-velocity cube is formed from the radar signals. The three-dimensional range-angle-velocity cube includes individual bins with radar intensity values characterizing angle and range for a specific velocity. The three-dimensional range-angle-velocity cube is analyzed to identify a ground plane and radar signals reflected from particles immediately proximate to the ground plane. Total particle deposition distribution is predicted.
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公开(公告)号：US11016169B2
公开(公告)日：2021-05-25
申请号：US16067770
申请日：2017-01-03
申请人： Symeo GmbH
发明人： Martin Vossiek , Michael Gottinger , Fabian Kirsch , Peter Gulden
摘要： A method is described in particular for reducing interference due to phase noise in a radar system, in which in a first noncoherent transceiver unit (NKSE1) a first signal (sigTX1) is generated and transmitted, in particular emitted, via a path (SP), in a further, in particular second noncoherent transceiver unit (NKSE2), a first signal (sigTX2) is generated and transmitted, in particular emitted, via the path (SP), the signals (sigTX1 and sigTX2) are received directly or indirectly in the respective other transceiver unit and are processed further therein as received signals sigRX12 and sigRX21, in the first transceiver unit (NKSE1), a comparison signal (sigC12) is formed from its first signal (sigTX1) and from such a first signal (sigRTX2) received from the further transceiver unit (NKSE2) via the path (SP), and in the further transceiver unit (NKSE2), a further comparison signal (sigC21) is formed from its first signal (sigTX2) and from such a first signal (sigTX1) received from the first transceiver unit (NKSE1) via the path (SP), wherein the further comparison signal (sigC21) is transmitted, in particular communicated, from the further transceiver unit (NKSE2) to the first transceiver unit (NKSE1), wherein in a first step, deviations of the signals sigC21 and sigC12 which are induced by systematic deviations in the transceiver units (NKSE2, NKSE1), are compensated for, wherein in a second step, at least one complex value from a first of the two comparison signals or from a signal which was derived from this first comparison signal is used for the purpose of adapting at least one complex value of the second of the two comparison signals or a value of a signal which was derived from the second comparison signal, and thus to form a signal (sigCC), wherein the adaptation takes place such that by a mathematical operation, the vector sum or the difference of the complex values is formed or the sum or the difference of the phases of the complex values is formed.
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公开(公告)号：US10962634B2
公开(公告)日：2021-03-30
申请号：US15129404
申请日：2015-03-23
申请人： SYMEO GMBH
发明人： Peter Gulden , Martin Vossiek
IPC分类号： G01S13/32 , G01S13/87 , G01S13/34 , G01S13/00 , G01S7/02 , G01S13/10 , G01S13/50 , G01S13/90 , G01S13/74 , G01S13/02 , G01S13/46
摘要： The invention relates to a method in a radar system, wherein: in a first non-coherent transmitting-receiving unit (NKSE1), a first signal (sigTX1) is generated and is transmitted, in particular emitted, via a path (SP); in a further, in particular second non-coherent transmitting-receiving unit (NKSE2), a first signal (sigTX2) is generated and is sent, in particular emitted, via the path (SP); in the first transmitting-receiving unit (NKSE1), a comparison signal (sigC12) is formed from the first signal (sigTX1) of the first transmitting-receiving unit and from such a first signal (sigTX2) received from the further transmitting-receiving unit (NKSE2) via the path (SP); and in the further transmitting-receiving unit (NKSE2), a further comparison signal (sigC21) is formed from the first signal (sigTX2) of the further transmitting-receiving unit and from such a first signal (sigTX1) received from the first transmitting-receiving unit (NKSE1) via the path (SP), wherein the further comparison signal (sigC21) is transmitted, in particular communicated, to the first transmitting-receiving unit (NKSE1) by the further transmitting-receiving unit (NKSE2). The invention further relates to a radar system and to a device of a radar system that perform such a method.
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