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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
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。
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公开(公告)号：US07495605B1
公开(公告)日：2009-02-24
申请号：US11497033
申请日：2006-07-31
申请人： Mai Sakamoto , Kazuma Natsume , Yasuyuki Miyake
发明人： Mai Sakamoto , Kazuma Natsume , Yasuyuki Miyake
IPC分类号： G01S13/08
摘要： A radar apparatus includes a receiving means that receives a reflected signal, a beat signal generation means that generates beat signals based on the reflected signal, a correlation matrix generation means that calculates correlation matrices based on the beat signals, a storing means that stores previous correlation matrices, an addition means that calculates addition correlation matrices by adding the correlation matrices to the previous correlation matrices, a detection means that detects a frequency component satisfying a predetermined condition by using the beat signals, an extraction means that extracts an extraction matrix corresponding to the detected frequency from the addition correlation matrices, and a direction calculation means that calculates a direction of the object with respect to the radar apparatus based on the extraction matrix.
摘要翻译： 雷达装置包括接收反射信号的接收装置，基于反射信号产生拍频信号的拍子信号产生装置，基于拍子信号计算相关矩阵的相关矩阵生成装置，存储先前相关的存储装置 矩阵，加法装置，通过将相关矩阵与先前的相关矩阵相加来计算加法相关矩阵;检测装置，通过使用拍子信号来检测满足预定条件的频率分量;提取装置，提取对应于 来自加法相关矩阵的检测频率;以及方向计算装置，其基于提取矩阵来计算相对于雷达装置的对象的方向。
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公开(公告)号：US07474252B2
公开(公告)日：2009-01-06
申请号：US11171726
申请日：2005-06-30
申请人： Kazuma Natsume , Yasuyuki Miyake
发明人： Kazuma Natsume , Yasuyuki Miyake
CPC分类号： G01S3/74 , G01S13/34 , G01S13/931 , G01S2013/9321 , G01S2013/9375
摘要： A radar device uses a transmission signal outputted from a transmission antenna and a reception signal as an incoming wave reflected from a target object through an arrangement of reception antennas for estimating an angle of the incoming wave. An incoming wave estimation process stores a threshold for each beat frequency of the beat signal, and distinguishes the incoming wave in a signal space from the incoming wave in a non-signal space using the threshold. The estimation process facilitates an accurate estimation of the incoming wave in MUSIC method, ESPRIT method or the like.
摘要翻译： 雷达装置使用从发送天线输出的发送信号和接收信号作为从对象物体反射的入射波，通过用于估计入射波的角度的接收天线的布置。 入射波估计处理存储拍子信号的每个拍频的阈值，并且使用该阈值将信号空间中的入射波与非信号空间中的入射波区分开。 估计过程有助于在MUSIC方法，ESPRIT方法等中准确估计入射波。
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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
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。
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公开(公告)号：US20070120730A1
公开(公告)日：2007-05-31
申请号：US11605993
申请日：2006-11-29
申请人： Gaku Takano , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake
发明人： Gaku Takano , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake
IPC分类号： G01S13/93
CPC分类号： G01S13/931 , G01S3/74 , G01S13/42 , G01S2013/0245
摘要： A radar signal processor has means for outputting a predetermined observation signal from a reflected wave caught by an array element, means for extracting an observation signal component concerning a target from the observation signal, means for computing a sample correlation matrix showing a correlation characteristic between the observation means which is a sample value of a correlation matrix from the observation signal components, means for estimating power of the reflected wave from the sample correlation matrix, and an array response matrix which is comprised of response vectors of the reflected waves, and means for selecting the reflected wave in a predetermined arrival direction power of which is to be estimated and a reflected wave in an azimuth adjacent to the arrival direction of the reflected wave and for computing and determining the array response matrix as an adjacent azimuth array response matrix, having only these reflected waves as elements in order to estimate the power of the reflected wave on the basis of the adjacent azimuth array response matrix.
摘要翻译： 雷达信号处理器具有用于从由阵列元件捕获的反射波输出预定观测信号的装置，用于从观测信号中提取关于目标的观测信号分量的装置，用于计算示出相关特征的样本相关矩阵的装置 观测装置，其是来自观测信号分量的相关矩阵的样本值，用于估计来自样本相关矩阵的反射波的功率的装置和由反射波的响应矢量组成的阵列响应矩阵，以及用于 选择要被估计的预定到达方向功率的反射波和与反射波的到达方向相邻的方位角的反射波，并且用于计算和确定阵列响应矩阵作为相邻的方位阵列响应矩阵，具有 只有这些反射波作为元素才能估计p 在相邻的方位阵列响应矩阵的基础上反射波的反射。
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公开(公告)号：US20070024492A1
公开(公告)日：2007-02-01
申请号：US11376625
申请日：2006-03-15
申请人： Gaku Takano , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake , Yasushi Sakuma
发明人： Gaku Takano , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake , Yasushi Sakuma
IPC分类号： G01S13/93
CPC分类号： G01S13/878 , G01S3/74 , G01S2013/9353
摘要： A radar signal processor has observation means, for receiving a reflected wave from a target and for outputting a predetermined observation signal, means for extracting distance component, for extracting a distance component corresponding to a distance from the each observation signal, means for estimating, for collecting respective distance components and for computing and estimating an estimated value of a corresponding correlation matrix with a forgetting factor as a parameter by a method for estimating correlation matrix with exponential smoothing, means for estimating a presence of a target or a movement state of the target on the basis of the respective estimated values of the correlation matrices, and means for determining forgetting factor, for respectively computing and determining the forgetting factors corresponding to the distances, and for respectively outputting the computed and determined.
摘要翻译： 雷达信号处理器具有用于从目标接收反射波并输出预定观测信号的观测装置，用于提取距离分量的装置，用于提取与每个观测信号相对应的距离的距离分量;装置，用于估计 收集相应的距离分量，并且通过用于以指数平滑估计相关矩阵的方法来计算和估计具有遗忘因子的相应相关矩阵的估计值作为参数，用于估计目标的存在或目标的移动状态的装置 根据相关矩阵的相应估计值，以及用于确定遗忘因子的装置，分别计算和确定与距离对应的遗忘因子，并分别输出计算和确定的。
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公开(公告)号：US20090040097A1
公开(公告)日：2009-02-12
申请号：US11497033
申请日：2006-07-31
申请人： Mai Sakamoto , Kazuma Natsume , Yasuyuki Miyake
发明人： Mai Sakamoto , Kazuma Natsume , Yasuyuki Miyake
IPC分类号： G01S13/08
摘要： A radar apparatus includes a receiving means that receives a reflected signal, a beat signal generation means that generates beat signals based on the reflected signal, a correlation matrix generation means that calculates correlation matrices based on the beat signals, a storing means that stores previous correlation matrices, an addition means that calculates addition correlation matrices by adding the correlation matrices to the previous correlation matrices, a detection means that detects a frequency component satisfying a predetermined condition by using the beat signals, an extraction means that extracts an extraction matrix corresponding to the detected frequency from the addition correlation matrices, and a direction calculation means that calculates a direction of the object with respect to the radar apparatus based on the extraction matrix.
摘要翻译： 雷达装置包括接收反射信号的接收装置，基于反射信号产生拍频信号的拍子信号产生装置，基于拍子信号计算相关矩阵的相关矩阵生成装置，存储先前相关的存储装置 矩阵，加法装置，通过将相关矩阵与先前的相关矩阵相加来计算加法相关矩阵;检测装置，通过使用拍子信号来检测满足预定条件的频率分量;提取装置，提取对应于 来自加法相关矩阵的检测频率;以及方向计算装置，其基于提取矩阵来计算相对于雷达装置的对象的方向。
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公开(公告)号：US07486230B2
公开(公告)日：2009-02-03
申请号：US11605993
申请日：2006-11-29
申请人： Gaku Takano , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake
发明人： Gaku Takano , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake
CPC分类号： G01S13/931 , G01S3/74 , G01S13/42 , G01S2013/0245
摘要： A radar signal processor has observation means for outputting a predetermined observation signal from a reflected wave, means for extracting an observation signal component concerning a target from the observation signal, means for computing a sample correlation matrix showing a correlation characteristic between the observation means from the observation signal components, means for estimating power of the reflected wave from the sample correlation matrix, and an array response matrix which is comprised of response vectors of the reflected waves. When estimating the power, an adjacent azimuth array response matrix having only the reflected waves of a predetermined arrival direction which power is to be estimated and the reflected waves of an azimuth adjacent to the reflected wave as elements is determined so as to estimate the power of the reflected wave.
摘要翻译： 雷达信号处理器具有用于从反射波输出预定观测信号的观测装置，用于从观测信号中提取关于目标的观测信号分量的装置，用于计算示出来自所述观测装置的观测装置之间的相关特性的样本相关矩阵的装置 观测信号分量，用于从样本相关矩阵估计反射波的功率的装置，以及由反射波的响应矢量组成的阵列响应矩阵。 当估计功率时，确定仅具有将被估计功率的预定到达方向的反射波和与反射波相邻的方位角的反射波作为元件的相邻方位阵列响应矩阵，以便估计功率 反射波。
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公开(公告)号：US06924762B2
公开(公告)日：2005-08-02
申请号：US10844600
申请日：2004-05-13
申请人： Yasuyuki Miyake , Kazuma Natsume
发明人： Yasuyuki Miyake , Kazuma Natsume
IPC分类号： G01S7/02 , G01S13/34 , G01S13/44 , G01S13/50 , G01S13/58 , G01S13/60 , G01S13/93 , G01S13/42
CPC分类号： G01S13/4454 , G01S13/34 , G01S13/584 , G01S13/931 , G01S2013/9321 , G01S2013/9353
摘要： A radar is provided which transmits a radar wave whose frequency is so modulated as to rise, fall, and be kept constant cyclically. The radar uses beat signals produced by the radar wave and radar echoes received by two antennas to produce radar data on a target. When it is impossible to pair frequency peaks of the beat signals in a modulated frequency-rising and -falling ranges, the radar determines that the frequency peaks have arisen from different objects so that they overlap each other and uses frequency peaks of the beat signals in a constant modulated frequency range to acquire the radar data.
摘要翻译： 提供雷达，其发射频率被调制为上升，下降的雷达波，并且周期性地保持恒定。 该雷达使用由雷达波产生的拍频信号和由两个天线接收的雷达回波，以在目标上产生雷达数据。 当不可能将拍频信号的频率峰值配置在调制的上升和下降范围内时，雷达确定频率峰值从不同的对象产生，使得它们彼此重叠，并使用频率峰值 一个恒定的调制频率范围来获取雷达数据。
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公开(公告)号：US07525478B2
公开(公告)日：2009-04-28
申请号：US11376625
申请日：2006-03-15
申请人： Gaku Takano , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake , Yasushi Sakuma
发明人： Gaku Takano , Chiharu Yamano , Kazuma Natsume , Yasuyuki Miyake , Yasushi Sakuma
CPC分类号： G01S13/878 , G01S3/74 , G01S2013/9353
摘要： A radar signal processor is disclosed having an observation mechanism for receiving a reflected wave from a target and for outputting a predetermined observation signal. The processor extracts a distance component corresponding to a distance from each observation signal. The processor further collects the respective distance components and computes an estimated value of a corresponding correlation matrix with a forgetting factor as a parameter using a method for estimating correlation matrix with exponential smoothing. The processor further estimates the presence or movement state of the target on the basis of the respective estimated values of the correlation matrices and outputs the computed values.
摘要翻译： 公开了一种雷达信号处理器，其具有用于从目标接收反射波并用于输出预定观测信号的观察机构。 处理器从每个观察信号提取与距离相对应的距离分量。 处理器进一步收集相应的距离分量，并使用遗传因子作为参数来计算具有指数平滑估计相关矩阵的方法的相应相关矩阵的估计值。 处理器进一步基于相关矩阵的相应估计值来估计目标的存在或移动状态，并输出所计算的值。
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