Compensating slowly varying if DC offsets in receivers
    11.
    发明授权
    Compensating slowly varying if DC offsets in receivers 有权
    补偿接收器中DC偏移量缓慢变化

    公开(公告)号:US09151827B2

    公开(公告)日:2015-10-06

    申请号:US13710963

    申请日:2012-12-11

    Inventor: Herbert Jaeger

    CPC classification number: G01S7/354 G01S7/038 G01S7/4004 G01S13/343

    Abstract: The present disclosure relate to a receiver system that removes unwanted signal components from a received signal based upon signal information from previous received signals. The receiver system has a signal generator that generates multiple signal patterns. One of the multiple signal patterns is provided to a transmit antenna that wirelessly transmits the signal pattern. A receive antenna port receives a reflected signal comprising a time-shifted version of the signal pattern and provides the reflected signal to a reception path. A feedback path extends from the reception path to a signal correction element, which selectively generates a correction signal that reduces unwanted signal components in the reflected signal. The signal correction element generates the correction signal from compensation parameters stored in a memory, which correspond to previously received reflected signals comprising the signal pattern, so that the correction signal can be used to reduce unwanted signal components in real time.

    Abstract translation: 本公开涉及一种基于来自先前接收到的信号的信号信息从接收信号中去除不需要的信号分量的接收机系统。 接收机系统具有产生多个信号模式的信号发生器。 将多个信号图案中的一个提供给无线发送信号图案的发送天线。 接收天线端口接收包括信号模式的时移版本的反射信号,并将反射信号提供给接收路径。 反馈路径从接收路径延伸到信号校正元件,该信号校正元件选择性地产生减少反射信号中不需要的信号分量的校正信号。 信号校正元件从存储在存储器中的补偿参数产生校正信号,其对应于先前接收的包括信号图案的反射信号,使得校正信号可用于实时地减少不需要的信号分量。

    Method and device for processing radar signals

    公开(公告)号:US10802134B2

    公开(公告)日:2020-10-13

    申请号:US15944902

    申请日:2018-04-04

    Abstract: A method for processing radar signals includes emitting a first radar signal via a transmitting antenna of a first radar unit, where the first radar signal is phase modulated using a first code and a first frequency offset is added to at least a portion of the first radar signal, and emitting a second radar signal via a transmitting antenna of a second radar unit, where the second radar signal is phase modulated using a second code. The first code and the second code are orthogonal to each other and the first radar unit and the second radar unit are loosely coupled with each other. The method further includes receiving a combined radar signal via a receiving antenna of the first radar unit, where the combined radar signal comprises a reflections of the first and the second radar signals, and processing the combined radar signal at the first radar unit.

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