公开(公告)号：US08085184B2

公开(公告)日：2011-12-27

申请号：US12421926

申请日：2009-04-10

申请人： Yuuki Takabayashi ,  Hiroshi Kameda

发明人： Yuuki Takabayashi ,  Hiroshi Kameda

IPC分类号： G01S13/00 ,  G01S13/08 ,  G01S13/58

CPC分类号： G01S13/931 ,  G01S13/343 ,  G01S13/584 ,  G01S2013/9325

摘要： According to a conventional method of correlating beat frequencies in a radar device, a detecting state of a target differs at the time of up-chirping and at that of down-chirping, so that, when the number of peaks of beat frequencies does not match with each other, there occurs a situation in which the beat frequencies cannot be accurately correlated.The radar device herein provided includes a transmission unit for transmitting a frequency-modulated continuous wave (FMCW) signal; a reception unit for generating a beat signal from the transmission signal and a reception signal corresponding thereto; a beat-frequency generating unit for obtaining a beat-frequency distribution corresponding to the beat signal; an up-chirp beat-frequency tracking means and a down-chirp beat-frequency tracking means for performing tracking processing on a beat signal; and an up-chirp target-detection means and a down-chirp target-detection means for calculating a range and range-change rate to a target based on a beat signal's frequency distribution.

摘要翻译： 根据雷达装置中的拍频相关的常规方法，目标的检测状态在向上啁啾时和在下啁啾时的检测状态不同，使得当拍频的峰值数不匹配时 彼此发生拍频不能被精确相关的情况。 本文提供的雷达装置包括用于发送调频连续波（FMCW）信号的发送单元; 接收单元，用于从所述发送信号产生拍频信号和与其对应的接收信号; 拍频产生单元，用于获得对应于拍子信号的拍频分布; 用于对拍子信号进行跟踪处理的向上啁啾拍频跟踪装置和下啁啾拍频调频装置; 以及向上啁啾目标检测装置和下行啁啾目标检测装置，用于基于拍子信号的频率分布来计算对目标的范围和范围变化率。

公开(公告)号：US20090309782A1

公开(公告)日：2009-12-17

申请号：US12421926

申请日：2009-04-10

申请人： Yuuki Takabayashi ,  Hiroshi Kameda

发明人： Yuuki Takabayashi ,  Hiroshi Kameda

IPC分类号： G01S13/58

CPC分类号： G01S13/931 ,  G01S13/343 ,  G01S13/584 ,  G01S2013/9325

摘要： According to a conventional method of correlating beat frequencies in a radar device, a detecting state of a target differs at the time of up-chirping and at that of down-chirping, so that, when the number of peaks of beat frequencies does not match with each other, there occurs a situation in which the beat frequencies cannot be accurately correlated.The radar device herein provided includes a transmission unit for transmitting a frequency-modulated continuous wave (FMCW) signal; a reception unit for generating a beat signal from the transmission signal and a reception signal corresponding thereto; a beat-frequency generating unit for obtaining a beat-frequency distribution corresponding to the beat signal; an up-chirp beat-frequency tracking means and a down-chirp beat-frequency tracking means for performing tracking processing on a beat signal; and an up-chirp target-detection means and a down-chirp target-detection means for calculating a range and range-change rate to a target based on a beat signal's frequency distribution.

摘要翻译： 根据雷达装置中的拍频相关的常规方法，目标的检测状态在向上啁啾时和在下啁啾时的检测状态不同，使得当拍频的峰值数不匹配时 彼此发生拍频不能被精确相关的情况。 本文提供的雷达装置包括用于发送调频连续波（FMCW）信号的发送单元; 接收单元，用于从所述发送信号产生拍频信号和与其对应的接收信号; 拍频产生单元，用于获得对应于拍子信号的拍频分布; 用于对拍子信号进行跟踪处理的向上啁啾拍频跟踪装置和下啁啾拍频调频装置; 以及向上啁啾目标检测装置和下行啁啾目标检测装置，用于基于拍子信号的频率分布来计算对目标的范围和范围变化率。