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1. 发明授权

US07907083B2 Radar device 有权
标题翻译：雷达设备
公开(公告)号：US07907083B2
公开(公告)日：2011-03-15
申请号：US12584982
申请日：2009-09-15
申请人： Mai Sakamoto , Kazuma Natsume , Yuu Watanabe , Hideki Shirai , Chiharu Yamano
发明人： Mai Sakamoto , Kazuma Natsume , Yuu Watanabe , Hideki Shirai , Chiharu Yamano
IPC分类号： G01S13/42
CPC分类号： G01S13/345 , G01S3/74 , G01S13/42 , G01S13/931 , G01S2013/9375
摘要： A FMCW-type radar device generates snapshot data from a beat signal that represents a received condition of the radar device every modulation period. Auto-correlation matrices generated by the snapshot data every modulation period are averaged every set of plural periods. The radar device calculates the target azimuth of a target object such as a preceding vehicle based on the averaged auto-correlation matrix based on MUSIC (MUltiple SIgnal Classification) method. This averaging is performed by weighting average based on an amount of mixed noise (or an interference amount) contained in the snapshot data in each modulation period. A weighting coefficient to be applied to the auto-correlation matrix in each modulation period is set to a value corresponding to the amount of mixed noise, namely, the interference amount of this modulation period. The weighting coefficient becomes large when the interference amount is small, and on the other hand, becomes small when it is large.
摘要翻译： FMCW型雷达装置从表示每个调制周期的雷达装置的接收状态的拍子信号产生快照数据。每个调制周期由快照数据生成的自相关矩阵在多个周期的集合中取平均值。雷达装置基于基于MUSIC（多尺度分类）方法的平均自相关矩阵来计算诸如前一车辆的目标对象的目标方位角。该平均化是通过基于每个调制周期中包含在快照数据中的混合噪声量（或干扰量）的加权平均来执行的。将在每个调制周期中应用于自相关矩阵的加权系数设置为与混合噪声量即该调制周期的干扰量相对应的值。当干扰量小时，加权系数变大，另一方面，当它大时变小。

2. 发明授权

US07843388B2 Arrival direction estimation apparatus 有权
标题翻译：到达方向估计装置
公开(公告)号：US07843388B2
公开(公告)日：2010-11-30
申请号：US11645754
申请日：2006-12-27
申请人： Hideki Shirai , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake
发明人： Hideki Shirai , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake
IPC分类号： G01S5/04 , H04B7/216
CPC分类号： H04L27/12 , G01S3/40 , G01S3/48 , G01S3/74 , G01S3/8006 , G01S3/8055 , G01S3/808
摘要： A technology for providing an arrival direction estimation apparatus which can greatly reduce the calculation amount in spectrum calculation and can perform precise direction estimation without setting short frequency division in spectrum calculation is disclosed. According to the technology, there is provided the arrival direction estimation apparatus including an antenna, a complex digital signal converting means, a real number correlation matrix calculating means, a real number weight matrix calculating means, a spectrum calculating means, and a spectrum peak detecting means, wherein the spectrum calculating means has a real number matrix storing means which stores a real number matrix, a multiplying means which multiplies part of elements of the real number matrix by part of elements of a real number weight matrix, a result storing means which stores the multiplication processing result, a calculating means which performs at least one or more processing of matrix element inversion processing and matrix element sign change processing for the stored processing result, an adding means which adds the processing result by the calculating means, part of the processing result stored in the result storing means, and part of the elements of the real number weight matrix, and a spectrum calculating means which calculates a spectrum with the use of the processing result.
摘要翻译：公开了一种用于提供能够大大减少频谱计算中的计算量并且可以执行精确方向估计而不在频谱计算中设置短分频的到达方向估计装置的技术。根据该技术，提供了包括天线，复数数字信号转换装置，实数相关矩阵计算装置，实数权重矩阵计算装置，频谱计算装置和频谱峰值检测的到达方向估计装置其中频谱计算装置具有存储实数矩阵的实数矩阵存储装置，将实数矩阵的部分元素乘以实数权重矩阵的元素的一部分的乘法装置，结果存储装置，存储乘法处理结果的计算装置，对所存储的处理结果进行矩阵元素反演处理和矩阵元素符号变更处理的至少一个以上处理的计算单元，将计算单元的处理结果相加的加法单元，存储在结果存储装置中的处理结果，以及真实元素的一部分数量权重矩阵，以及使用处理结果来计算频谱的频谱计算装置。

3. 发明申请

US20090121918A1 RADAR APPARATUS ENABLING SIMPLIFIED SUPPRESSION OF INTERFERENCE SIGNAL COMPONENTS WHICH RESULT FROM RECEPTION OF DIRECTLY TRANSMITTED RADAR WAVES FROM ANOTHER RADAR APPARATUS 有权
标题翻译： RADAR设备启用了从其他RADAR设备接收直接发送的雷达波形的干扰信号组件的简化抑制
公开(公告)号：US20090121918A1
公开(公告)日：2009-05-14
申请号：US12269205
申请日：2008-11-12
申请人： Hideki Shirai , Chiharu Yamano , Kazuma Natsume , Yuu Watanabe , Mai Sakamoto
发明人： Hideki Shirai , Chiharu Yamano , Kazuma Natsume , Yuu Watanabe , Mai Sakamoto
IPC分类号： G01S13/93
CPC分类号： G01S7/023 , G01S7/2813 , G01S13/345 , G01S13/931
摘要： In a FM-CW or CW radar apparatus, when interference components are Contained in channel signals obtained as beat signals from array antenna elements of respective channels, and the interference components result from directly receiving transmitted CW radar waves from an external source, phase shifting is applied to each of the channel signals to shift respective phases of the interference components of the respective channels to a condition corresponding to reception of interference waves from a predetermined direction. The interference components are then eliminated, and reverse phase shifting is applied to restore remaining components of the channel signals to their original phase condition.
摘要翻译：在FM-CW或CW雷达装置中，当干扰分量被包含在作为来自各个信道的阵列天线元件的拍频信号获得的信道信号中时，并且干扰分量是从直接接收来自外部源的发送的CW雷达波而产生的，相移是应用于每个信道信号以将各个信道的干扰分量的各个相位移位到对应于从预定方向的干扰波的接收的状态。然后消除干扰分量，并且应用反向相移以将信道信号的剩余分量恢复到其原始相位条件。

4. 发明申请

US20100073216A1 Radar device 有权
标题翻译：雷达设备
公开(公告)号：US20100073216A1
公开(公告)日：2010-03-25
申请号：US12584982
申请日：2009-09-15
申请人： Mai Sakamoto , Kazuma Natsume , Yuu Watanabe , Hideki Shirai , Chiharu Yamano
发明人： Mai Sakamoto , Kazuma Natsume , Yuu Watanabe , Hideki Shirai , Chiharu Yamano
IPC分类号： G01S13/42 , G01S13/00 , G01S13/08
CPC分类号： G01S13/345 , G01S3/74 , G01S13/42 , G01S13/931 , G01S2013/9375
摘要： A FMCW-type radar device generates snapshot data from a beat signal that represents a received condition of the radar device every modulation period. Auto-correlation matrices generated by the snapshot data every modulation period are averaged every set of plural periods. The radar device calculates the target azimuth of a target object such as a preceding vehicle based on the averaged auto-correlation matrix based on MUSIC (MUltiple SIgnal Classification) method. This averaging is performed by weighting average based on an amount of mixed noise (or an interference amount) contained in the snapshot data in each modulation period. A weighting coefficient to be applied to the auto-correlation matrix in each modulation period is set to a value corresponding to the amount of mixed noise, namely, the interference amount of this modulation period. The weighting coefficient becomes large when the interference amount is small, and on the other hand, becomes small when it is large.
摘要翻译： FMCW型雷达装置从表示每个调制周期的雷达装置的接收状态的拍子信号产生快照数据。每个调制周期由快照数据生成的自相关矩阵在多个周期的集合中取平均值。雷达装置基于基于MUSIC（多尺度分类）方法的平均自相关矩阵来计算诸如前一车辆的目标对象的目标方位角。该平均化是通过基于每个调制周期中包含在快照数据中的混合噪声量（或干扰量）的加权平均来执行的。将在每个调制周期中应用于自相关矩阵的加权系数设置为与混合噪声量即该调制周期的干扰量相对应的值。当干扰量小时，加权系数变大，另一方面，当它大时变小。

5. 发明授权

US07372404B2 Apparatus for estimating direction of arrival wave 有权
标题翻译：用于估计到达波方向的装置
公开(公告)号：US07372404B2
公开(公告)日：2008-05-13
申请号：US11390866
申请日：2006-03-27
申请人： Hideki Shirai , Kazuma Natsume
发明人： Hideki Shirai , Kazuma Natsume
IPC分类号： G01S5/02
CPC分类号： G01S3/74 , G01S3/8006
摘要： Apparatus and method are disclosed for estimating direction of an arrival wave, such as radio or acoustic waves. A correlation matrix of an arrival wave is computed, and matrices for obtaining eigenvalues and eigenvectors are produced. Column norms of the matrix, which is subject to a Householder transformation, are computed. Whether a maximum value of the column norms is the same as or lower than a predetermined threshold is judged. A Householder transformation of the matrix is performed only if the maximum value of the column norms is determined to be greater than or equal to the threshold, and not when the maximum value of the column norms is less than the threshold. The eigenvectors and the eigenvalues of the correlation matrix are obtained by further implementing the Householder transformation. The number of arrival waves is judged from the number of times the Householder transformation is performed.
摘要翻译：公开了用于估计到达波的方向（诸如无线电或声波）的装置和方法。计算到达波的相关矩阵，并产生用于获得特征值和特征向量的矩阵。计算矩阵的列规范，这是由Householder转换进行的。判断列规范的最大值是否等于或低于预定阈值。仅当列范数的最大值被确定为大于或等于阈值时，而不是当列范数的最大值小于阈值时才执行矩阵的Householder变换。相关矩阵的特征向量和特征值通过进一步实施Householder变换获得。到达波数是从众议院转型次数来判断的。

6. 发明申请

US20070147482A1 Arrival direction estimation apparatus 有权
标题翻译：到达方向估计装置
公开(公告)号：US20070147482A1
公开(公告)日：2007-06-28
申请号：US11645754
申请日：2006-12-27
申请人： Hideki Shirai , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake
发明人： Hideki Shirai , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake
IPC分类号： H04B1/00 , H04L27/06
CPC分类号： H04L27/12 , G01S3/40 , G01S3/48 , G01S3/74 , G01S3/8006 , G01S3/8055 , G01S3/808
摘要： A technology for providing an arrival direction estimation apparatus which can greatly reduce the calculation amount in spectrum calculation and can perform precise direction estimation without setting short frequency division in spectrum calculation is disclosed. According to the technology, there is provided the arrival direction estimation apparatus including an antenna, a complex digital signal converting means, a real number correlation matrix calculating means, a real number weight matrix calculating means, a spectrum calculating means, and a spectrum peak detecting means, wherein the spectrum calculating means has a real number matrix storing means which stores a real number matrix, a multiplying means which multiplies part of elements of the real number matrix by part of elements of a real number weight matrix, a result storing means which stores the multiplication processing result, a calculating means which performs at least one or more processing of matrix element inversion processing and matrix element sign change processing for the stored processing result, an adding means which adds the processing result by the calculating means, part of the processing result stored in the result storing means, and part of the elements of the real number weight matrix, and a spectrum calculating means which calculates a spectrum with the use of the processing result.
摘要翻译：公开了一种用于提供能够大大减少频谱计算中的计算量并且可以执行精确方向估计而不在频谱计算中设置短分频的到达方向估计装置的技术。根据该技术，提供了包括天线，复数数字信号转换装置，实数相关矩阵计算装置，实数权重矩阵计算装置，频谱计算装置和频谱峰值检测的到达方向估计装置其中频谱计算装置具有存储实数矩阵的实数矩阵存储装置，将实数矩阵的部分元素乘以实数权重矩阵的元素的一部分的乘法装置，结果存储装置，存储乘法处理结果的计算装置，对所存储的处理结果进行矩阵元素反演处理和矩阵元素符号变更处理的至少一个以上处理的计算单元，将计算单元的处理结果相加的加法单元，存储在结果存储装置中的处理结果，以及真实元素的一部分数量权重矩阵，以及使用处理结果来计算频谱的频谱计算装置。

7. 发明授权

US07760133B2 Radar apparatus enabling simplified suppression of interference signal components which result from reception of directly transmitted radar waves from another radar apparatus 有权
标题翻译：雷达装置能够简化从接收来自另一雷达装置的直接发射雷达波而产生的干扰信号分量的抑制
公开(公告)号：US07760133B2
公开(公告)日：2010-07-20
申请号：US12269205
申请日：2008-11-12
申请人： Hideki Shirai , Chiharu Yamano , Kazuma Natsume , Yuu Watanabe , Mai Sakamoto
发明人： Hideki Shirai , Chiharu Yamano , Kazuma Natsume , Yuu Watanabe , Mai Sakamoto
IPC分类号： G01S13/34 , G01S13/56 , G01S7/35 , G01S13/00 , G01S7/00
CPC分类号： G01S7/023 , G01S7/2813 , G01S13/345 , G01S13/931
摘要： In a FM-CW or CW radar apparatus, when interference components are contained in channel signals obtained as beat signals from array antenna elements of respective channels, and the interference components result from directly receiving transmitted CW radar waves from an external source, phase shifting is applied to each of the channel signals to shift respective phases of the interference components of the respective channels to a condition corresponding to reception of interference waves from a predetermined direction. The interference components are then eliminated, and reverse phase shifting is applied to restore remaining components of the channel signals to their original phase condition.
摘要翻译：在FM-CW或CW雷达装置中，当干扰分量被包含在作为来自各个信道的阵列天线元件的拍频信号获得的信道信号中，并且干扰分量是从直接接收来自外部源的发射的CW雷达波时产生的，相移是应用于每个信道信号以将各个信道的干扰分量的各个相位移位到对应于从预定方向的干扰波的接收的状态。然后消除干扰分量，并且应用反向相移以将信道信号的剩余分量恢复到其原始相位条件。

8. 发明申请

US20060224655A1 Apparatus for estimating direction of arrival wave 有权
标题翻译：用于估计到达波方向的装置
公开(公告)号：US20060224655A1
公开(公告)日：2006-10-05
申请号：US11390866
申请日：2006-03-27
申请人： Hideki Shirai , Kazuma Natsume
发明人： Hideki Shirai , Kazuma Natsume
IPC分类号： G06F7/52
CPC分类号： G01S3/74 , G01S3/8006
摘要： Apparatus has means for computing correlation matrix of arrival wave, means for producing a matrix for obtaining eigenvalues and a matrix for obtaining eigenvectors, means for computing column norms on the matrix which is a subject for Householder transformation, means for judging whether a maximum value of the column norms is the same as or lower than a predetermined threshold, means for repeating Householder transformation on the matrix only if the maximum value of the column norms is judged not to be the same or not to be lower, means for breaking Householder transformation if the maximum value is the same as or lower, means for further implementing Householder transformation and for obtaining the eigenvectors and the eigenvalues of the correlation matrix, and means for judging the number of the arrival waves from the implementation times of Householder transformation.
摘要翻译：装置具有用于计算到达波的相关矩阵的装置，用于产生用于获得特征值的矩阵的装置和用于获得特征向量的矩阵的装置，用于计算作为Householder变换的主题的矩阵的列规范的装置，用于判断是否有最大值列规范等于或小于预定阈值，用于仅在列规范的最大值被判断为不相同或不低于的情况下重复矩阵中的Householder变换的方法，如果最大值相同或更低，用于进一步实施Householder变换和获取相关矩阵的特征向量和特征值的手段，以及用于根据Householder转换的实施时间来判断到达波数的方法。

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