Sensor device
    11.
    发明授权

    公开(公告)号:US10192431B2

    公开(公告)日:2019-01-29

    申请号:US15113939

    申请日:2015-01-29

    Inventor: Ralph Mende

    Abstract: A sensor device (4) is designed to detect road users along a stretch of a roadway and comprises a transmission and/or reception unit for emitting and/or receiving a transmission radiation. Said sensor device (4) is characterized in that the same includes at least one ascertainment unit for ascertaining an actual position and/or an actual orientation of the sensor device (4).

    Method for Determining the Distance and Relative Speed of a Remote Object
    13.
    发明申请
    Method for Determining the Distance and Relative Speed of a Remote Object 审中-公开
    确定远程对象的距离和相对速度的方法

    公开(公告)号:US20160124085A1

    公开(公告)日:2016-05-05

    申请号:US14892241

    申请日:2014-05-14

    CPC classification number: G01S13/584 G01S13/343 G01S13/347 G01S2007/356

    Abstract: The invention relates to a method for determining the distance (R) and relative speed (v) of at least one object remote from an observation point, comprising the following method steps: continuous transmission of at least one first and one second electromagnetic signal in each case of a signal period (Tchirp) from the observation point; the signals consist of signal portions (bursts) having a constant frequency and a predetermined equal duration, wherein the signal portions of a signal cover a predetermined modulation range by means of frequency steps; the signals are transmitted interlaced in that signal portions of the different signals follow one another in time, wherein a frequency hop occurs between the successive signal portions of different signals, receiving the signals reflected by the object as an echo signal and carrying out a mixed operation with the transmission signal for transformation of the received signal into the baseband in a common analog channel; carrying out an analog-to-digital conversion and sampling the received signal portions of the echo signals and extraction of at least one sampling value for each signal portion; separately evaluating the sampling values for the different echo signals of the different emitted signals by means of a Fourier transformation stage and determining the frequency of the peaks corresponding to signal portions and determining a phase difference between the echo signals of the transmitted signals, characterised in that the signal portions of the second signal (B) are transmitted by means of the same frequencies as corresponding signal portions of the first signal (A).

    Abstract translation: 本发明涉及一种用于确定远离观察点的至少一个物体的距离(R)和相对速度(v)的方法,包括以下方法步骤:在每个物体中连续传输至少一个第一和第二电磁信号 来自观察点的信号周期(Tchirp)的情况; 信号由具有恒定频率和预定相等持续时间的信号部分(脉冲串)组成,其中信号的信号部分通过频率步长覆盖预定的调制范围; 在不同信号的信号部分中,信号被隔行扫描,其中在不同信号的连续信号部分之间发生频率跳跃,接收由对象反射的信号作为回波信号并进行混合操作 具有用于在公共模拟信道中将接收信号转换为基带的发送信号; 进行模数转换并对回波信号的接收信号部分进行采样并提取每个信号部分的至少一个采样值; 通过傅里叶变换级分别评估不同发射信号的不同回波信号的采样值,并确定对应于信号部分的峰值的频率,并确定发射信号的回波信号之间的相位差,其特征在于: 第二信号(B)的信号部分通过与第一信号(A)的相应信号部分相同的频率被发送。

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