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221 条记录 (耗时 0.014 秒)

    PULSED RADAR LEVEL GAUGE WITH SINGLE OSCILLATOR
    58.
    发明公开
    PULSED RADAR LEVEL GAUGE WITH SINGLE OSCILLATOR 审中-公开
    带单振荡器的脉冲雷达液位计

    公开(公告)号：EP3301472A1

    公开(公告)日：2018-04-04

    申请号：EP16191947.7

    申请日：2016-09-30

    申请人： Rosemount Tank Radar AB

    发明人： Eriksson, Mikael

    IPC分类号： G01S7/28 ,  G01S7/288 ,  G01S7/282

    摘要： A pulsed radar level gauge for determining the filling level of a product contained in a tank, comprising a frequency generator for generating a Tx frequency signal and a Rx frequency signal. The frequency generator includes one single oscillating crystal for providing an oscillator frequency f osc and frequency modifying circuitry. The frequency modifying circuitry comprises a path including a PLL configured to receive said oscillator frequency f osc as input frequency and deliver a regulated output frequency being equal to the oscillator frequency f osc multiplied M/N, and a frequency divider connected to receive the regulated output frequency and deliver an output frequency equal to the regulated output frequency divided by an integer factor P.
    A PLL combined with an integer frequency divider is used to generate at least one of the Tx and Rx frequencies based on an oscillator frequency provided by one single oscillator.

    摘要翻译： 一种脉冲式雷达液位计，用于确定罐中所含产品的液位，包括用于产生Tx频率信号和Rx频率信号的频率发生器。 频率发生器包括一个单一的振荡晶体，用于提供振荡器频率fosc和频率修改电路。 频率修改电路包括包含PLL的路径，所述PLL被配置为接收所述振荡器频率fosc作为输入频率并且传送等于振荡器频率fosc乘以M / N的经调节的输出频率，以及连接成接收经调节的输出频率的分频器，以及 输出等于调节输出频率的输出频率除以整数倍P.与整数分频器组合的PLL用于基于由单个振荡器提供的振荡器频率来产生Tx和Rx频率中的至少一个。

    RADAR APPARATUS AND TARGET OBJECT DETECTION METHOD
    59.
    发明公开
    RADAR APPARATUS AND TARGET OBJECT DETECTION METHOD 审中-公开
    雷达装置及目标物体检测方法

    公开(公告)号：EP3220159A1

    公开(公告)日：2017-09-20

    申请号：EP17158270.3

    申请日：2017-02-28

    申请人： Panasonic Corporation

    发明人： LIU, Weijie ,  NAKAGAWA, Yoichi

    IPC分类号： G01S7/292 ,  G01S13/28 ,  G01S13/34 ,  G01S13/93 ,  G01S7/288

    CPC分类号： G01S13/28 ,  G01S7/2921 ,  G01S13/282 ,  G01S13/288 ,  G01S13/34 ,  G01S13/345 ,  G01S13/931 ,  G01S2007/2886

    摘要： Frequency analysis of each of a plurality of reception antennas and each of reception signals received by the plurality of reception antennas is performed, a power spectrum is calculated for each of the reception antennas, a standard deviation indicating a degree of conformity in a peak of the power spectrum among the plurality of reception antennas is calculated, the power spectra are corrected with use of the standard deviation, a peak is detected based on the corrected power spectra, and a target object is detected based on the detected peak.

    摘要翻译： 对由多个接收天线接收到的多个接收天线和接收信号中的每一个进行频率分析，计算每个接收天线的功率谱，指示该接收天线的峰值中的一致程度的标准偏差 计算多个接收天线中的功率谱，使用标准偏差校正功率谱，基于校正的功率谱检测峰值，并且基于检测到的峰值检测目标物体。

    RADAR APPARATUS AND RADAR METHOD
    60.
    发明公开
    RADAR APPARATUS AND RADAR METHOD 审中-公开
    雷达装置和雷达方法

    公开(公告)号：EP3208632A1

    公开(公告)日：2017-08-23

    申请号：EP17154530.4

    申请日：2017-02-03

    申请人： Panasonic Corporation

    发明人： KISHIGAMI, Takaaki

    IPC分类号： G01S13/28 ,  G01S13/93 ,  G01S7/288

    CPC分类号： G01S13/581 ,  G01S7/2925 ,  G01S13/284 ,  G01S13/931 ,  G01S2007/2883 ,  G01S2007/2886

    摘要： A radar apparatus includes a radar transmitter and a radar receiver. The radar receiver includes sampling circuitry, correlation calculation circuitry, a plurality of adder circuitry, a plurality of Doppler frequency analysis circuitry and Doppler frequency correction circuitry. The Doppler frequency correction circuitry, which in operation, (i) determines whether or not a folding in a Doppler frequency included in a reflected wave signal is present according to an amplitude difference or phase difference between two of peak spectra of results of analyses performed by the plurality of Doppler frequency analysis circuitry, and (ii) makes a correction to the Doppler frequency included in a reflected wave signal on the basis of the results of the analyses in a case it is determined that the folding is present.

    摘要翻译： 雷达装置包括雷达发射器和雷达接收器。 雷达接收器包括采样电路，相关计算电路，多个加法器电路，多个多普勒频率分析电路和多普勒频率校正电路。 多普勒频率校正电路在操作中（i）根据由下式执行的分析结果的两个峰值频谱之间的幅度差或相位差，确定是否存在反射波信号中包括的多普勒频率中的折叠 在判定为存在折叠的情况下，根据分析结果，对多个多普勒频率分析电路进行校正，并对反射波信号中包含的多普勒频率进行校正。