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公开(公告)号：US08054216B2
公开(公告)日：2011-11-08
申请号：US12320413
申请日：2009-01-26
CPC分类号： G01S13/4454
摘要： A radar device has a plurality of receiving antennas which receive, as a reception wave, a radar wave sent in a predetermined reference direction and reflected by a target; a phase difference detection unit which detects a first phase difference of the reception wave received by a first receiving antenna pair that is spaced by a first gap, and a second phase difference of the reception wave received by a second receiving antenna pair that is spaced by a second gap smaller than the first gap; and an angle detection unit which performs a first process of determining, as a detection angle, an angle of the target relative to the reference direction being a mutually coincident angle from among a plurality of first angles corresponding to the first phase difference and a plurality of second angles corresponding to the second phase difference. The radar device allows expanding an angle detection range without reducing the resolution of the angle corresponding to the second phase difference.
摘要翻译： 雷达装置具有多个接收天线，其接收以预定参考方向发送并由目标反射的雷达波作为接收波; 相位差检测单元，检测由第一接收天线对接收的与第一间隙间隔的接收波的第一相位差和由第二接收天线对接收的接收波的第二相位差， 第二间隙小于第一间隙; 以及角度检测单元，其执行第一处理，所述角度检测单元从对应于所述第一相位差的多个第一角度和多个第一相位角确定作为检测角度的所述目标相对于所述参考方向的角度是相互重合的角度 对应于第二相位差的第二角度。 雷达装置允许扩大角度检测范围而不降低对应于第二相位差的角度的分辨率。
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公开(公告)号：US20090207071A1
公开(公告)日：2009-08-20
申请号：US12320413
申请日：2009-01-26
IPC分类号： G01S13/00
CPC分类号： G01S13/4454
摘要： A radar device has a plurality of receiving antennas which receive, as a reception wave, a radar wave sent in a predetermined reference direction and reflected by a target; a phase difference detection unit which detects a first phase difference of the reception wave received by a first receiving antenna pair that is spaced by a first gap, and a second phase difference of the reception wave received by a second receiving antenna pair that is spaced by a second gap smaller than the first gap; and an angle detection unit which performs a first process of determining, as a detection angle, an angle of the target relative to the reference direction being a mutually coincident angle from among a plurality of first angles corresponding to the first phase difference and a plurality of second angles corresponding to the second phase difference. The radar device allows expanding an angle detection range without reducing the resolution of the angle corresponding to the second phase difference.
摘要翻译： 雷达装置具有多个接收天线，其接收以预定参考方向发送并由目标反射的雷达波作为接收波; 相位差检测单元，检测由第一接收天线对接收的与第一间隙间隔的接收波的第一相位差和由第二接收天线对接收的接收波的第二相位差， 第二间隙小于第一间隙; 以及角度检测单元，其执行第一处理，所述角度检测单元从对应于所述第一相位差的多个第一角度和多个第一相位角确定作为检测角度的所述目标相对于所述参考方向的角度是相互重合的角度 对应于第二相位差的第二角度。 雷达装置允许扩大角度检测范围而不降低对应于第二相位差的角度的分辨率。
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