METHOD AND DEVICE FOR COMPENSATING FOR PHASE NOISE

    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

    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.

    Circuit arrangement and method for synchronization of clocks in a network
    3.
    发明授权
    Circuit arrangement and method for synchronization of clocks in a network 有权
    网络中时钟同步的电路布置和方法

    公开(公告)号:US08108558B2

    公开(公告)日:2012-01-31

    申请号:US12390586

    申请日:2009-02-23

    IPC分类号: G06F15/16 G06F1/12

    摘要: A circuit arrangement and a method for synchronizing clocks in a network is provided, comprising a plurality of at least two nodes, wherein at least two of said nodes can communicated with each other and each have a local clock, wherein, in a receiving one of said nodes, from at least one transmitting other such node, a global time transmitted by said transmitting one of said node of said transmitting one of said nodes is received, and a global time of said receiving node is determined or estimated as a function of both the received global time of said transmitting node and of a local time of the receiving node's own local clock.

    摘要翻译: 提供了一种用于同步网络中的时钟的电路装置和方法,包括多个至少两个节点,其中所述节点中的至少两个可以彼此通信,并且每个具有本地时钟,其中, 所述节点从至少一个发送的另一个这样的节点接收由所述发送所述节点之一的所述节点中的所述发送方之一发送的全局时间,并且所述接收节点的全局时间被确定或估计为两者的函数 所接收的所述发送节点的全局时间和接收节点本身时钟的本地时间。

    Active backscatter transponder, communication system comprising the same and method for transmitting data by way of such an active backscatter transponder
    4.
    发明授权
    Active backscatter transponder, communication system comprising the same and method for transmitting data by way of such an active backscatter transponder 失效
    主动后向散射转发器,包括该主动后向散射转发器的通信系统和用于通过这种有源反向散射转发器发送数据的方法

    公开(公告)号:US07242259B2

    公开(公告)日:2007-07-10

    申请号:US10506885

    申请日:2003-02-24

    IPC分类号: H03B1/00

    CPC分类号: G06K19/0723 G06K7/0008

    摘要: The invention relates to a device, especially an active backscatter transponder, for generating an oscillator signal based on a base signal. It comprises an oscillator for actively constructing the oscillator signal by oscillations, an input for the base signal and an output for the oscillator signal produced. The oscillator can be induced by the base signal to generate oscillator signal in a quasi-coherent manner to the base signal. For the transmission of data, the device further has a data insertion device for inserting data or a data signal into the oscillator signal. A corresponding suitable receiver receives and processes the received signal that was generated and transmitted by such a device as a quasi-coherent signal. A separation device removes the signal portions of the oscillator from the received signal via the base signal of a receiver-side oscillator, with a data retrieval device for retrieving the inserted data.

    摘要翻译: 本发明涉及一种用于基于基本信号产生振荡器信号的装置,特别是有源反向散射转发器。 它包括用于通过振荡主动构造振荡器信号的振荡器,用于基本信号的输入和产生的振荡器信号的输出。 振荡器可以由基本信号感应,以基准信号的准相干方式产生振荡器信号。 为了传输数据,该装置还具有用于将数据或数据信号插入到振荡器信号中的数据插入装置。 相应的合适的接收机接收并处理由诸如准相干信号的这种装置产生和传输的接收信号。 分离装置通过用于检索插入数据的数据检索装置,经由接收机侧振荡器的基本信号从接收信号中去除振荡器的信号部分。

    METHOD, APPARATUS AND RADAR SYSTEM FOR TRACKING OBJECTS

    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

    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.

    RADAR METHOD AND RADAR SYSTEM FOR A PHASE-COHERENT ANALYSIS

    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

    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.

    APPARATUS AND METHOD FOR PARTICLE DEPOSITION DISTRIBUTION ESTIMATION

    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

    IPC分类号: B05B12/08 G01S13/89 G01S13/58

    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.

    Method and system for reducing interference caused by phase noise in a radar system

    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

    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

    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

    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.

    Method and device for the synchronization of radio stations and a time-synchronous radio bus system
    10.
    发明授权
    Method and device for the synchronization of radio stations and a time-synchronous radio bus system 有权
    用于无线电台同步的方法和装置以及时间同步的无线电总线系统

    公开(公告)号:US07940743B2

    公开(公告)日:2011-05-10

    申请号:US10496886

    申请日:2002-11-19

    IPC分类号: H04J3/06

    CPC分类号: H04L7/06

    摘要: A method and device for synchronizing a transmitter and a receiver with each other over a radio interface. A transmission signal is produced with a signal source in the transmitter and is transmitted via the radio interface. A corresponding receiver signal is received in the receiver from the radio interface and is evaluated using a receiver signal source signal from a signal source of the receiver adapted to the signal source of the transmitter. The same frequency modulation is applied to the receiver signal source signal, whereby the receiver signal received in the receiver is mixed with the receiver signal source signal to form a mixed signal and the mixed signal is analyzed with respect to frequency unbalance.

    摘要翻译: 一种用于通过无线电接口使发射机和接收机彼此同步的方法和装置。 在发射机中用信号源产生传输信号,并通过无线电接口传输。 相应的接收机信号在接收机中从无线接口接收,并且使用接收机信号源信号来评估,该接收机信号源信号来自适应于发射机的信号源的接收机的信号源。 对接收机信号源信号施加相同的频率调制,由此在接收机中接收的接收机信号与接收机信号源信号混合以形成混合信号,并且针对频率不平衡来分析混合信号。