Systems and methods for correcting for leakage and distortion in radar systems

    公开(公告)号:US09638794B2

    公开(公告)日:2017-05-02

    申请号:US14162085

    申请日:2014-01-23

    CPC classification number: G01S13/4454 G01S7/038 G01S2007/2886

    Abstract: Methods and systems for correcting leakage and/or distortion in radar systems include defining an integration time period, dividing the integration time period into a first sub-period and a second sub-period, at least partially transmitting a transmission radar signal during the first sub-period of the integration time period, not transmitting at all during the second sub-period of the integration time period, integrating the detected signal during both the first sub-period and the second sub-period, and subtracting a last sampled integrated value of the second sub-period from a last sampled integrated value of the first sub-period to generate a corrected integrated value for the integration time period.

    APPARATUS AND METHOD FOR MITIGATING INTERFERENCE IN A FREQUENCY-MODULATED CONTINUOUS-WAVE (FMCW) AUTOMOTIVE RADAR SYSTEM
    2.
    发明申请
    APPARATUS AND METHOD FOR MITIGATING INTERFERENCE IN A FREQUENCY-MODULATED CONTINUOUS-WAVE (FMCW) AUTOMOTIVE RADAR SYSTEM 有权
    用于减轻频率调制连续波(FMCW)汽车雷达系统干扰的装置和方法

    公开(公告)号:US20170023662A1

    公开(公告)日:2017-01-26

    申请号:US14808307

    申请日:2015-07-24

    Inventor: Xueru Ding

    Abstract: In a frequency-modulated continuous-wave radar processing system and method, a linear frequency ramp signal is defined. The linear ramp signal is divided into a plurality of time sections. The sections of the linear ramp signal are rearranged in time such that the plurality of sections define a transmit control signal different than the linear ramp signal. A radar transmission signal is generated having a frequency varying with time according to the transmit control signal, and the radar transmission signal is transmitted into the region of interest. An intermediate frequency (IF) signal is generated using the radar transmission signal and radar receive signals received from the region of interest, a frequency of the IF signal being a difference between the frequency of the radar transmission signal and a frequency of the radar receive signals. The IF signal is low-pass filtered. Radar processing is performed on the low-pass-filtered IF signal.

    Abstract translation: 在频率调制的连续波雷达处理系统和方法中,定义了线性频率斜坡信号。 线性斜坡信号被分成多个时间段。 线性斜坡信号的部分在时间上重新排列,使得多个部分限定与线性斜坡信号不同的发送控制信号。 产生具有根据发送控制信号随时间变化的频率的雷达发射信号,并且雷达发射信号被发送到感兴趣的区域。 使用从感兴趣区域接收的雷达传输信号和雷达接收信号产生中频(IF)信号,IF信号的频率是雷达传输信号的频率与雷达接收信号的频率之间的差 。 IF信号被低通滤波。 对低通滤波IF信号进行雷达处理。

    Systems and Methods for Correcting for Leakage and Distortion in Radar Systems

    公开(公告)号:US20170336502A1

    公开(公告)日:2017-11-23

    申请号:US15583268

    申请日:2017-05-01

    CPC classification number: G01S13/4454 G01S7/038 G01S2007/2886

    Abstract: Methods and systems for correcting leakage and/or distortion in radar systems include defining an integration time period, dividing the integration time period into a first sub-period and a second sub-period, at least partially transmitting a transmission radar signal during the first sub-period of the integration time period, not transmitting at all during the second sub-period of the integration time period, integrating the detected signal during both the first sub-period and the second sub-period, and subtracting a last sampled integrated value of the second sub-period from a last sampled integrated value of the first sub-period to generate a corrected integrated value for the integration time period.

    Electrical gasket and electronic module having electrical gasket
    4.
    发明授权
    Electrical gasket and electronic module having electrical gasket 有权
    电气垫圈和电子模块具有电气垫片

    公开(公告)号:US09332680B2

    公开(公告)日:2016-05-03

    申请号:US13834533

    申请日:2013-03-15

    Inventor: Xueru Ding

    CPC classification number: H05K9/0016 H05K9/00

    Abstract: An electrical gasket provides an electrical seal between first and second components in an electrical module. The electrical gasket includes an attachment portion for fixedly attaching the electrical gasket to one of the first and second components and a plurality of spring members for engaging the other of the first and second components to make mechanical and electrical contact between the first and second components such that the electrical seal is provided between the first and second electrical components. One of the components of the module can be an EMI shield or printed circuit board of the module, and another of the components can be the module housing.

    Abstract translation: 电气垫圈在电气模块中的第一和第二部件之间提供电气密封。 电气垫圈包括用于将电垫圈固定地附接到第一和第二部件中的一个的附接部分和用于接合第一和第二部件中的另一个的多个弹簧部件,以在第一和第二部件之间进行机械和电接触, 电气密封件设置在第一和第二电气部件之间。 模块的一个组件可以是模块的EMI屏蔽或印刷电路板,另一个组件可以是模块外壳。

    Apparatus and method for mitigating interference in a frequency-modulated continuous-wave (FMCW) automotive radar system

    公开(公告)号:US09945933B2

    公开(公告)日:2018-04-17

    申请号:US14808307

    申请日:2015-07-24

    Inventor: Xueru Ding

    Abstract: In a frequency-modulated continuous-wave radar processing system and method, a linear frequency ramp signal is defined. The linear ramp signal is divided into a plurality of time sections. The sections of the linear ramp signal are rearranged in time such that the plurality of sections define a transmit control signal different than the linear ramp signal. A radar transmission signal is generated having a frequency varying with time according to the transmit control signal, and the radar transmission signal is transmitted into the region of interest. An intermediate frequency (IF) signal is generated using the radar transmission signal and radar receive signals received from the region of interest, a frequency of the IF signal being a difference between the frequency of the radar transmission signal and a frequency of the radar receive signals. The IF signal is low-pass filtered. Radar processing is performed on the low-pass-filtered IF signal.

    AUTOMOTIVE RADAR SYSTEM AND AUTOMOTIVE RADAR SENSOR MODULE WITH BREATHER STRUCTURE
    6.
    发明申请
    AUTOMOTIVE RADAR SYSTEM AND AUTOMOTIVE RADAR SENSOR MODULE WITH BREATHER STRUCTURE 有权
    汽车雷达系统和汽车雷达传感器模块与呼吸机结构

    公开(公告)号:US20170013741A1

    公开(公告)日:2017-01-12

    申请号:US14794056

    申请日:2015-07-08

    Abstract: A housing for a radar sensor module has a back surface and a plurality of side surfaces connected to the back surface. A vent structure is connected to the back surface and at least one of the side surfaces. The vent structure includes an enclosure enclosing a chamber. A first opening in the vent structure penetrates the at least one of the side surfaces of the housing, such that the chamber is exposed to an exterior of the housing. A second opening in the vent structure penetrates the enclosure such that the chamber is exposed to an interior of the housing.

    Abstract translation: 用于雷达传感器模块的壳体具有连接到后表面的后表面和多个侧表面。 排气结构连接到后表面和至少一个侧表面。 排气结构包括封闭室的外壳。 排气结构中的第一开口穿透壳体的至少一个侧表面,使得室暴露于外壳的外部。 排气结构中的第二个开口穿过外壳,使得室暴露在外壳的内部。

    Dispensible electrical gasket, electronic module having dispensible electrical gasket, and method of fabricating same
    7.
    发明授权
    Dispensible electrical gasket, electronic module having dispensible electrical gasket, and method of fabricating same 有权
    可分配电气垫圈,具有可分离电气垫圈的电子模块及其制造方法

    公开(公告)号:US09313934B2

    公开(公告)日:2016-04-12

    申请号:US13834868

    申请日:2013-03-15

    Abstract: An electronic module and method of making an electronic module include a printed circuit board (PCB) having a surface, at least one conductive trace being formed on the surface. A housing element for mechanically mating with the PCB includes at least one mating surface aligned with the conductive trace on the PCB when the PCB and the housing element are mechanically mated, the mating surface comprising a plurality of alternating protrusions and spaces between the protrusions. An electrical gasket is formed on the mating surface of the housing element such that the electrical gasket conforms with the protrusions and spaces on the mating surface of the housing element and is disposed between the mating surface of the housing element and the conductive trace on the surface of the PCB when the housing element and the PCB are mechanically mated, such that the electrical gasket provides an electromagnetic interference (EMI) seal between the mating surface of the housing element and the conductive trace on the first surface of the PCB.

    Abstract translation: 电子模块和制造电子模块的方法包括具有表面的印刷电路板(PCB),在表面上形成至少一个导电迹线。 用于与PCB机械地配合的壳体元件包括至少一个与PCB上的导电迹线对准的配合表面,当PCB和壳体元件机械配合时,配合表面包括突起之间的多个交替突起和间隔。 电气垫圈形成在壳体元件的配合表面上,使得电垫片与壳体元件的配合表面上的突起和空间一致,并且设置在壳体元件的配合表面和表面上的导电迹线之间 当外壳元件和PCB机械地配合时,电气垫圈在壳体元件的配合表面和PCB的第一表面上的导电迹线之间提供电磁干扰(EMI)密封。

    Dispensible Electrical Gasket, Electronic Module Having Dispensible Electrical Gasket, And Method Of Fabricating Same
    8.
    发明申请
    Dispensible Electrical Gasket, Electronic Module Having Dispensible Electrical Gasket, And Method Of Fabricating Same 有权
    可分配电气垫片,具有可分配电气垫圈的电子模块及其制造方法

    公开(公告)号:US20140266903A1

    公开(公告)日:2014-09-18

    申请号:US13834868

    申请日:2013-03-15

    Abstract: An electronic module and method of making an electronic module include a printed circuit board (PCB) having a surface, at least one conductive trace being formed on the surface. A housing element for mechanically mating with the PCB includes at least one mating surface aligned with the conductive trace on the PCB when the PCB and the housing element are mechanically mated, the mating surface comprising a plurality of alternating protrusions and spaces between the protrusions. An electrical gasket is formed on the mating surface of the housing element such that the electrical gasket conforms with the protrusions and spaces on the mating surface of the housing element and is disposed between the mating surface of the housing element and the conductive trace on the surface of the PCB when the housing element and the PCB are mechanically mated, such that the electrical gasket provides an electromagnetic interference (EMI) seal between the mating surface of the housing element and the conductive trace on the first surface of the PCB.

    Abstract translation: 电子模块和制造电子模块的方法包括具有表面的印刷电路板(PCB),在表面上形成至少一个导电迹线。 用于与PCB机械地配合的壳体元件包括至少一个与PCB上的导电迹线对准的配合表面,当PCB和壳体元件机械配合时,配合表面包括突起之间的多个交替突起和间隔。 电气垫圈形成在壳体元件的配合表面上,使得电垫片与壳体元件的配合表面上的突起和空间一致,并且设置在壳体元件的配合表面和表面上的导电迹线之间 当外壳元件和PCB机械地配合时,电气垫圈在壳体元件的配合表面和PCB的第一表面上的导电迹线之间提供电磁干扰(EMI)密封。

    System and Method for Continuous Wave Interference Cancellation

    公开(公告)号:US20170343662A1

    公开(公告)日:2017-11-30

    申请号:US15619506

    申请日:2017-06-11

    Abstract: Methods and systems for cancelling continuous wave interference in radar systems include defining an integration time period, dividing the integration time period into sub-periods during which the radar sensor system transmits a radar signal integrating a detected signal during both sub-periods to generate sub-period integrated values, wherein integration in the sub-periods is triggered at points of symmetrical opposite polarities of a down converted interferer signal having a non-integer number of cycles in each sub-period, and adding tire respective sub-period integrated values to cancel interference residue of opposite polarity in the respective sub-periods.

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