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    • 2. 发明授权
    • On-vehicle radar device and on-vehicle radar device control system
    • 车载雷达装置和车载雷达装置控制系统
    • US07605745B2
    • 2009-10-20
    • US11694377
    • 2007-03-30
    • Kanako HondaOsamu IsajiKazuo ShirakawaNaofumi OhkuboTetsuo Seki
    • Kanako HondaOsamu IsajiKazuo ShirakawaNaofumi OhkuboTetsuo Seki
    • G01S13/00
    • G01S7/36G01S7/023G01S13/34G01S13/345G01S13/931G01S2013/936
    • Provide an on-vehicle radar device that performs transmission control of a monitoring signal, following fixed rules, so that interference with other radar devices can be avoided with certainty. An on-vehicle radar device comprises a transceiver which transmits/receives a monitoring signal at a specified frequency band and transmits a priority order signal at a frequency within the above-mentioned frequency band, and a controller which switches the signals transmitted by the transceiver. The transceiver receives a priority order signal of another radar device, and when interference with the signal of the other radar device is detected, the controller, based on the priority order of that other device and on the priority order of the device itself, shifts, by a specified frequency amount, the frequency band of the monitoring signal transmitted by the transceiver.
    • 提供一种车载雷达设备,按照固定的规则执行监控信号的传输控制,以确保避免与其他雷达设备的干扰。 车载雷达装置包括收发信机,发送/接收指定频带的监视信号,并以上述频带内的频率发送优先顺序信号,以及切换由收发信机发送的信号的控制器。 收发器接收另一雷达装置的优先级顺序信号,当检测到与另一雷达装置的信号的干扰时,控制器根据该另一装置的优先级顺序和设备本身的优先顺序进行移位, 通过指定的频率量,由收发机发送的监视信号的频带。
    • 4. 发明授权
    • Radar apparatus and target detecting method
    • 雷达装置和目标检测方法
    • US08587470B2
    • 2013-11-19
    • US13038848
    • 2011-03-02
    • Kazuo Shirakawa
    • Kazuo Shirakawa
    • G01S7/36
    • G01S13/003G01S13/9035G01S2013/0254
    • Provided is a radar apparatus including an envelope detector unit that acquires an envelope component of a signal transmitted from a receiving antenna in at least one combination of a plurality of combinations of transmitting antennas and receiving antennas whose spatial phases become equal to each other in the array antenna; a determination unit that determines an amount of compensation in the at least one combination based on the envelope component acquired by the envelope detector unit; and a compensator unit that compensates a phase of a signal transmitted from each of the receiving antennas before aperture synthesis by using the amount of compensation determined by the determination unit, or compensates a phase of a signal radiated from the transmitting antenna in another combination.
    • 提供了一种雷达装置,其包括:包络检测器单元,其以发射天线的多个组合和接收天线的至少一个组合获取从接收天线发送的信号的包络分量,所述接收天线的空间相位在阵列中彼此相等 天线; 确定单元,其基于由包络检测器单元获取的包络分量来确定至少一个组合中的补偿量; 以及补偿单元,其通过使用由确定单元确定的补偿量来补偿在孔径合成之前从每个接收天线发送的信号的相位,或者在另一组合中补偿从发送天线辐射的信号的相位。
    • 5. 发明授权
    • Direction-of-arrival estimation apparatus
    • 到达方向估计装置
    • US07912680B2
    • 2011-03-22
    • US12324382
    • 2008-11-26
    • Kazuo Shirakawa
    • Kazuo Shirakawa
    • G06F15/00G01S5/04
    • G01S3/74
    • A direction-of-arrival estimation apparatus has a signal vector generation unit operable to generate a signal vector v composed of N baseband signals v1 to vN from arriving signals received from a target by N sensors. The direction-of-arrival estimation apparatus includes a Hankel matrix generation unit operable to preferentially set an order of a column of a matrix at a natural number M where 1≦M and M≦(N−1)/2 and generate an (N−M)×M matrix Rf1, Rf2, Rb1, or Rb2 from elements v1 to vN-1 of the signal vector. The direction-of-arrival estimation apparatus also includes an estimation unit operable to generate a matrix R using the matrices Rf1, Rf2, Rb1, or Rb2, divide the matrix R into two submatrices R1 and R2 by R=[R1|R2]T, and estimate a direction of arrival of the arriving signal based on the submatrices R1 and R2.
    • 到达方向估计装置具有信号矢量生成单元,用于从N个传感器从目标接收的到达信号中生成由N个基带信号v1〜vN构成的信号矢量v。 到达方向估计装置包括:汉克尔矩阵生成单元,其可以优先设定自然数M的矩阵的列的顺序,其中1≦̸ M和M≦̸(N-1)/ 2并生成(N -M)×M矩阵Rf1,Rf2,Rb1或Rb2,从信号向量的元素v1到vN-1。 到达方向估计装置还包括估计单元,用于使用矩阵Rf1,Rf2,Rb1或Rb2生成矩阵R,通过R = [R1 | R2] T将矩阵R除以两个子矩阵R1和R2 ,并且基于子矩阵R1和R2估计到达信号的到达方向。
    • 6. 发明授权
    • Incoming direction estimation apparatus
    • 传入方向估计装置
    • US07663549B2
    • 2010-02-16
    • US11889903
    • 2007-08-17
    • Kazuo Shirakawa
    • Kazuo Shirakawa
    • G01S5/02G01S5/04
    • G01S13/44H01Q21/06
    • An incoming direction estimation apparatus estimates an incoming direction of a radar wave using three or more sensors or antennas simultaneously. An arithmetic expression for estimating an incoming direction of a radar wave is configured as sin−1((1/2πa)*tan−1b). The “a” is d/λ determined by an antenna interval and by a wavelength λ of a carrier, or such, carrying the radar wave. A simultaneous use of three antennas makes it possible to set the a as a value depending on a value d0=a0λ based on the interval between first antennas and value d1=a1λ based on the interval between second antennas. Therefore, if a wide field of vision of an incoming direction is needed, it is only necessary to adjust (d1−d0)/λ=(a1−a0), in place of the absolute interval of antennas a=d/λ, thereby making it possible to lessen a limitation on the design of antennas and set a field of vision of the incoming direction appropriately.
    • 输入方向估计装置使用三个或更多个传感器或天线同时估计雷达波的输入方向。 用于估计雷达波的进入方向的算术表达式被配置为sin-1((1 / 2pia)* tan-1b)。 “a”是由载波的载波的天线间隔和波长λ确定的d /λ。 同时使用三个天线使得可以基于第一天线之间的间隔和值d1 = a1lambda,基于第二天线之间的间隔,将a设置为取决于值d0 =a0λ的值。 因此,如果需要输入方向的宽视场,则仅需要调整(d1-d0)/λ=(a1-a0)来代替天线的绝对间隔a = d /λ,从而 使得可以减少对天线设计的限制,并适当地设定入射方向的视场。
    • 7. 发明申请
    • Direction-of-arrival estimating device and program
    • 到达方向估计装置和程序
    • US20080122681A1
    • 2008-05-29
    • US11812467
    • 2007-06-19
    • Kazuo Shirakawa
    • Kazuo Shirakawa
    • G01S3/00
    • G01S3/74
    • An arriving direction estimating device for estimating the arriving direction of an arriving wave with high accuracy and at high speed by using a sensor array. The arriving direction estimating device comprises a receiving section for generating a baseband signal from the arriving signals received by sensors, a matrix creating section for creating a spatial average covariance matrix R by combining the correlation vector of the baseband signal, a projection matrix creating section for creating a projection matrix Q from the matrix R depending on the number of signals of the arriving signals, a scale matrix creating section for creating a scale matrix S from a partial matrix of the matrix R, and an estimating section for estimating the arriving direction of the arriving wave from the angle distribution or an algebraic equation by using QS−1QH defined using the projection matrix Q and the scale matrix S.
    • 一种到达方向估计装置,用于通过使用传感器阵列以高精度和高速估计到达波的到达方向。 到达方向估计装置包括:接收部分,用于从传感器接收到的到达信号产生基带信号;矩阵产生部分,用于通过组合基带信号的相关矢量来创建空间平均协方差矩阵R;矩阵创建部分,用于 根据到达信号的信号数量从矩阵R创建投影矩阵Q,用于从矩阵R的部分矩阵创建比例矩阵S的比例矩阵创建部分,以及用于估计矩阵R的到达方向的估计部分 使用投影矩阵Q和比例矩阵S定义的使用QS -1 Q 的角度分布的到达波或代数方程。
    • 9. 发明申请
    • DIRECTION-OF-ARRIVAL ESTIMATION APPARATUS
    • 方向估计装置
    • US20090243933A1
    • 2009-10-01
    • US12324382
    • 2008-11-26
    • Kazuo Shirakawa
    • Kazuo Shirakawa
    • G01S5/02
    • G01S3/74
    • A direction-of-arrival estimation apparatus has a signal vector generation unit operable to generate a signal vector v composed of N baseband signals v1 to vn from arriving signals received from a target by N sensors. The direction-of-arrival estimation apparatus includes a Hankel matrix generation unit operable to preferentially set an order of a column of a matrix at a natural number M where 1≦M and M≦(N−1)/2 and generate an (N−M)×M matrix Rf1, Rf2, Rb1, or Rb2 from elements v1 to VN−1 of the signal vector. The direction-of-arrival estimation apparatus also includes an estimation unit operable to generate a matrix R using the matrices Rf1, Rf2, Rb1, or Rb2, divide the matrix R into two submatrices R1 and R2 by R=[R1|R2]T, and estimate a direction of arrival of the arriving signal based on the submatrices R1 and R2.
    • 到达方向估计装置具有信号矢量生成单元,用于从N个传感器从目标接收的到达信号中生成由N个基带信号v1〜vn构成的信号矢量v。 到达方向估计装置包括汉克尔矩阵生成单元,其可操作以优先设定自然数M的矩阵的列的顺序,其中1 <= M和M <=(N-1)/ 2,并生成 (NM)xM矩阵Rf1,Rf2,Rb1或Rb2从信号向量的元素v1到VN-1。 到达方向估计装置还包括估计单元,用于使用矩阵Rf1,Rf2,Rb1或Rb2生成矩阵R,通过R = [R1 | R2] T将矩阵R除以两个子矩阵R1和R2 ,并且基于子矩阵R1和R2估计到达信号的到达方向。