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。

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。

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。

公开(公告)号：US20060132353A1

公开(公告)日：2006-06-22

申请号：US10717468

申请日：2003-11-21

申请人： Kazuma Natsume ,  Hiroaki Kumon ,  Kenta Hoki

发明人： Kazuma Natsume ,  Hiroaki Kumon ,  Kenta Hoki

IPC分类号： G01S13/44

CPC分类号： G01S13/4463 ,  G01S13/723 ,  G01S13/867

摘要： An apparatus for detecting a direction of a target is provided. The apparatus transmits and receives radio waves through a plurality of transmission/reception channels causing a phase difference in signals to be received through the transmission/reception channels and calculates the direction based on the phase difference. The apparatus comprises a direction calculating device, range determining device, and direction correcting device. The direction calculating device calculates the direction of the target based on the phase difference in the received signals on the assumption that the phase difference is within a range of −π to +π [rad]. The range determining device determines that the target exists in any of azimuthal angle ranges each corresponding to ranges defined by (2m−1)π to (2m+1)π [rad] (m is an integer). The direction correcting device corrects the direction according to a range-determined result.

摘要翻译： 提供了一种用于检测目标方向的装置。 该装置通过多个发送/接收信道发送和接收无线电波，导致通过发送/接收信道接收信号的相位差，并基于相位差计算方向。 该装置包括方向计算装置，范围确定装置和方向校正装置。 方向计算装置假设相位差在-pi至+ pi [rad]的范围内，基于接收信号中的相位差来计算目标的方向。 范围确定装置确定目标存在于每个对应于由（2m-1）pi至（2m + 1）pi [rad]（m是整数）定义的范围的方位角范围内的任何一个。 方向校正装置根据范围确定的结果校正方向。

公开(公告)号：US08674899B2

公开(公告)日：2014-03-18

申请号：US13200228

申请日：2011-09-21

申请人： Takamasa Ando ,  Kazuma Natsume

发明人： Takamasa Ando ,  Kazuma Natsume

IPC分类号： H01Q1/42

CPC分类号： G01S7/032 ,  G01S7/038 ,  G01S2007/027 ,  H01Q1/42 ,  H01Q1/525

摘要： A radome covers an antenna substrate of a millimeter-band radar apparatus, with a partition wall formed integrally in the radome separating the internal space of the radome into a first internal space, located in correspondence with a transmitting antenna section, and a second internal space, located in correspondence with a receiving antenna section. Increased isolation between transmission and reception is achieved thereby, by reducing the amount of transmitted radar waves which directly reach the receiving antenna section.

摘要翻译： 天线罩覆盖毫米波段雷达装置的天线基板，其中一个分隔壁整体形成在天线罩中，将天线罩的内部空间分隔成与发射天线部分对应的第一内部空间，以及第二内部空间 位于与接收天线部分对应的位置。 从而通过减少直接到达接收天线部分的发射雷达波的数量来实现传输和接收之间的增加的隔离。

公开(公告)号：US08471775B2

公开(公告)日：2013-06-25

申请号：US12661383

申请日：2010-03-16

申请人： Kento Nakabayashi ,  Kazuma Natsume ,  Yuu Watanabe ,  Takuya Kouya

发明人： Kento Nakabayashi ,  Kazuma Natsume ,  Yuu Watanabe ,  Takuya Kouya

IPC分类号： H01Q11/02

CPC分类号： H01Q21/08 ,  H01Q13/206 ,  H01Q21/0075

摘要： The array antenna includes a feed line, and a plurality of radiating element sections arranged at a predetermined arranging interval in a first direction, each of the radiating element sections including at least one radiating element fed a traveling wave through the feed line. The inter-element line length as a length of the feed line between each succeeding two of the radiating element sections is longer than the arranging interval in the first direction.

摘要翻译： 阵列天线包括馈电线，以及以第一方向以预定的布置间隔布置的多个辐射元件部分，每个辐射元件部分包括馈送通过馈电线的行波的至少一个辐射元件。 作为每个后续的两个辐射元件部分之间的馈送线的长度的元件间线长度比第一方向上的布置间隔长。

公开(公告)号：US08049660B2

公开(公告)日：2011-11-01

申请号：US12660717

申请日：2010-03-03

申请人： Akiyoshi Mizutani ,  Kazuma Natsume

发明人： Akiyoshi Mizutani ,  Kazuma Natsume

IPC分类号： G01S13/00 ,  H01Q21/08

CPC分类号： H01Q3/2647 ,  G01S3/48 ,  G01S7/35 ,  G01S13/4454 ,  G01S13/4463 ,  G01S13/931 ,  G01S2013/0254 ,  H01Q3/30

摘要： A radar apparatus has a plurality of receiving antennas and an array transmitting antenna controlled to successively vary the direction of a transmitted beam within a range which includes a target detection range of directions. The direction of any target within the target detection range is detected based on a phase difference between incident reflected waves of adjacent receiving antennas. To eliminate false targets resulting from aliasing, each detected target is authenticated based upon closeness of its detected direction to the current transmitted beam direction. The receiving antennas and transmitting antenna are configured to exclude directions of grating lobes of the transmitted beam from the detection range, and thereby suppress effects of received reflected waves that originate from grating lobes.

摘要翻译： 雷达装置具有多个接收天线和阵列发射天线，该阵列发射天线被控制以在包括方向的目标检测范围的范围内连续地改变发射波束的方向。 基于相邻接收天线的入射反射波之间的相位差来检测目标检测范围内的目标的方向。 为了消除由混叠产生的假目标，每个检测到的目标都将基于其检测到的方向与当前传输的波束方向的接近度进行认证。 接收天线和发射天线被配置为从检测范围中排除发射波束的光栅的方向，从而抑制从栅瓣起源的接收的反射波的影响。

公开(公告)号：US07724181B2

公开(公告)日：2010-05-25

申请号：US12456351

申请日：2009-06-16

申请人： Kazuma Natsume

发明人： Kazuma Natsume

IPC分类号： G01S13/42

CPC分类号： G01S13/426 ,  G01S3/74 ,  G01S2013/0263

摘要： A target object detection apparatus periodically executes a transmit/receive operation to transmit radar waves and obtain received signals from resultant incident reflected waves from respective target objects. An individual correlation matrix of received signal values is derived for each one of a fixed plurality of successive transmit/receive operations, with the transmission frequency being changed at successive operations. Individual correlation matrices derived from respective transmit/receive operations are time-averaged to obtain an average correlation matrix for use in obtaining target object information such as direction or velocity, with effects of correlation between respective incident waves being suppressed.

摘要翻译： 目标对象检测装置周期性地执行发送/接收操作以发送雷达波并从各个目标对象的合成入射反射波获得接收信号。 针对固定多个连续发送/接收操作中的每一个导出接收信号值的单个相关矩阵，其中传输频率在连续操作中改变。 从相应的发送/接收操作导出的各个相关矩阵是时间平均的，以获得用于获得诸如方向或速度的目标对象信息的平均相关矩阵，并且抑制了各个入射波之间的相关性的影响。

公开(公告)号：US07663537B2

公开(公告)日：2010-02-16

申请号：US11973363

申请日：2007-10-05

申请人： Koichiro Suzuki ,  Chiharu Yamano ,  Kazuma Natsume

发明人： Koichiro Suzuki ,  Chiharu Yamano ,  Kazuma Natsume

IPC分类号： G01S13/06 ,  G01S13/08 ,  G01S13/32 ,  G01S13/93 ,  G01S13/00

CPC分类号： G01S13/931 ,  G01S3/74 ,  G01S13/34 ,  G01S13/42 ,  G01S2013/9353 ,  G01S2013/9375

摘要： A target detecting apparatus mounted on a vehicle has an electronically agile radar detecting a beat signal indicating a difference in frequency between transmission and reception signals and producing a time series of N reception data from the beat signal, a determining unit determining search areas placed at different ranges of distance from the vehicle while considering a running state of the vehicle and determining a data length for each search area, an extracting unit extracting (N−M+1) time series of short time data, respectively, having the data length corresponding to M reception data from the N reception data for each search area, a producing unit producing phase information from the short time data for each search area, and a detecting unit determining a target distance and a target bearing from the phase information and detecting a target from the target distance and the target bearing.

摘要翻译： 安装在车辆上的目标检测装置具有电子敏捷雷达，其检测指示发送和接收信号之间的频率差异的拍频信号，并从拍子信号产生N个接收数据的时间序列，确定单元确定放置在不同的搜索区域 在考虑车辆的行驶状态并确定每个搜索区域的数据长度时，与车辆的距离范围，提取单元提取（N-M + 1）时间数据的时间序列，其数据长度分别对应于 来自每个搜索区域的N个接收数据的M个接收数据，从每个搜索区域的短时间数据产生相位信息的产生单元，以及从该相位信息确定目标距离和目标方位的检测单元， 目标距离和目标轴承。

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

IPC分类号： G01S13/56 ,  G01S13/93

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。