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    METHOD AND DEVICE FOR COMPENSATING FOR PHASE NOISE
    2.
    发明申请
    METHOD AND DEVICE FOR COMPENSATING FOR PHASE NOISE 有权

    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

    IPC分类号： G01S7/35 ,  G01S7/40 ,  G01S13/34

    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.

    Method and system for reducing interference caused by phase noise in a radar system
    3.
    发明授权
    Method and system for reducing interference caused by phase noise in a radar system 有权

    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

    IPC分类号： G01S13/87 ,  G01S7/02 ,  G01S7/40 ,  G01S7/35

    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.

    Method in a radar system, radar system, and/or device of a radar system
    4.
    发明授权
    Method in a radar system, radar system, and/or device of a radar system 有权

    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.

    TECHNIQUES FOR MITIGATING INTERFERENCE IN RADAR SIGNALS
    5.
    发明公开
    TECHNIQUES FOR MITIGATING INTERFERENCE IN RADAR SIGNALS 审中-公开

    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.

    System and method using reference stations and a receiving station
    7.
    发明授权
    System and method using reference stations and a receiving station 有权

    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

    IPC分类号： G01S1/20 ,  G01S1/02 ,  G01S5/02 ,  G01S5/10 ,  G01S5/14

    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.

    METHOD AND DEVICE FOR COMPENSATING FOR INTERFERING INFLUENCES
    10.
    发明申请
    METHOD AND DEVICE FOR COMPENSATING FOR INTERFERING INFLUENCES 有权

    公开(公告)号：US20210080540A1

    公开(公告)日：2021-03-18

    申请号：US16613099

    申请日：2018-04-25

    申请人： Symeo GmbH

    发明人： Martin Vossiek ,  Peter Gulden ,  Michael Gottinger

    IPC分类号： G01S7/35 ,  G01S13/84 ,  G01S7/40

    摘要： The invention relates to a method for compensating for noise, in particular phase noise, in a radio location system, comprising a first and a second non-coherent transceiving unit, wherein a first measurement signal (sm1(t)) and at least one second measurement signal (sm2(t)) are generated on the basis of signals transmitted by the first transceiving unit and received by the first transceiving unit, wherein a first frequency shift in the first measurement signal (sm1(t)) which is caused by noise, in particular phase noise, is opposite, in particular exactly opposite, a second frequency shift in the second measurement signal (sm2(t)) which is caused by the noise, in particular phase noise.