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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：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：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：US11009598B2
公开(公告)日：2021-05-18
申请号：US16156474
申请日：2018-10-10
申请人： Symeo GmbH
IPC分类号： G01S13/58 , G01S13/87 , G01S7/35 , G01S13/931 , G01S13/00
摘要： The invention relates to a radar method for determining the angular position, the location, and/or the velocity, in particular the vectorial velocity, of a target, wherein a first transceiver unit and at least one second transceiver unit, which is spatially separated in particular from the first transceiver unit, are not synchronized, but a measurement beginning of the first transceiver unit and the second transceiver unit is triggered in a wireless or wired manner with a chronological deviation Δtn, wherein measurements of the transceiver units are coherently processed.
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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
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.
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公开(公告)号：US11994608B2
公开(公告)日：2024-05-28
申请号：US17330094
申请日：2021-05-25
申请人： Symeo GmbH
IPC分类号： G01S7/00 , G01S7/35 , G01S13/82 , G01S13/93 , G01S13/931 , G01S13/933
CPC分类号： G01S7/006 , G01S7/35 , G01S13/825 , G01S13/931 , G01S13/933 , G01S2013/9316
摘要： The invention relates to a radar method for exchanging signals between at least two non-coherent transceiver units which respectively have initially non-synchronous, in particular controllable, clock sources, having the following steps: a synchronization in which clock offsets and/or clock rates of the clock sources of the at least two transceiver units are adapted; a full-duplex measuring process in which a first transmission signal of the first transceiver unit is transmitted to the second transceiver unit and a second transmission signal of the second transceiver unit is transmitted to the first transceiver unit via a radio channel; with synchronization prior to the full-duplex measuring process being carried out in such a way that a time offset and/or a frequency offset between the transmission signals at least substantially remain(s) constant during a transmission time of the full-duplex measuring process.
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公开(公告)号：US20240125894A1
公开(公告)日：2024-04-18
申请号：US18276401
申请日：2022-01-31
申请人： Symeo GmbH
IPC分类号： G01S7/03 , G01S13/931
CPC分类号： G01S7/03 , G01S13/931
摘要： The present subject matter relates to a radar system for detecting the surroundings of a moving object, in particular a vehicle and/or a transport device, such as in particular a crane, wherein the system is mounted or mountable on the moving object, wherein the radar system comprises at least one first, non-coherent, and at least one second, non-coherent, radar module with at least one antenna, wherein the radar modules are arranged or can be arranged distributed on the moving object, wherein at least one first radar module is configured differently from at least one second radar module.
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公开(公告)号：US11906655B2
公开(公告)日：2024-02-20
申请号：US16490476
申请日：2018-02-28
申请人： Symeo GmbH
CPC分类号： G01S7/4021 , G01S7/023 , G01S13/003 , G01S13/9021 , G01S13/9023 , G01S13/90
摘要： The invention relates to a radar system for capturing surroundings of a moving object, in particular a vehicle and/or a transportation apparatus, such as a crane, in particular, wherein the system is mounted or mountable on the moving object, wherein the radar system comprises at least two non-coherent radar modules (RM 1, RM 2, . . . RM N) having at least one transmitter antenna and at least one receiver antenna, wherein the radar modules (RM 1, RM 2, . . . RM N) are arranged or arrangeable in distributed fashion on the moving object, wherein provision is made of at least one evaluation device which is configured to process transmitted and received signals of the radar modules to form modified measurement signals in such a way that the modified measurement signals are coherent in relation to one another.
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公开(公告)号：US11733348B2
公开(公告)日：2023-08-22
申请号：US16613102
申请日：2018-05-11
申请人： Symeo GmbH
发明人： Martin Vossiek , Michael Gottinger , Peter Gulden
CPC分类号： G01S7/354 , G01S7/40 , G01S7/4017 , G01S13/343 , G01S13/34 , G01S13/36
摘要： Phase noise compensation can be performed in a primary radar system, such as in transceiver hardware. A first reflected reception signal can be received, corresponding to a reflection of a first transmission signal from an object, and a first measurement signal can be generated using mixing or correlation of the first reflected reception signal and the first transmission signal. A second measurement signal can be similarly generated from a second transmission signal and a second reflected reception signal. The first and second measurement signals include respective components including complex conjugate representations of each other. The components correspond to interfering components associated with phase noise, and such respective components can cancel each other to suppress phase noise.
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公开(公告)号：US11353570B2
公开(公告)日：2022-06-07
申请号：US16490492
申请日：2018-02-26
申请人： Symeo GmbH
发明人： Martin Vossiek , Michael Gottinger , Peter Gulden
摘要： Transmitting-receiving devices, such as within a radar system, can use a clock generator from which various higher-frequency signals are derived. For example, respective transmitting-receiving devices can include high-frequency (HF) generators. The present subject matter concerns a system and a method for providing measurement signals having increased coherence as compared with signals originally transmitted by the transmitting-receiving devices. Such measurement signals can be exchanged for synchronization. Increased coherence can enhance overall system performance, such as to assist in separating returns associated with weaker targets from those associated with stronger targets, or to provide enhanced angular resolution, as illustrative examples.
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