公开(公告)号：US20120119939A1

公开(公告)日：2012-05-17

申请号：US13292438

申请日：2011-11-09

申请人： Akiyoshi Mizutani ,  Kazuma Natsume ,  Yoshihiro Abe

发明人： Akiyoshi Mizutani ,  Kazuma Natsume ,  Yoshihiro Abe

IPC分类号： G01S13/06

CPC分类号： G01S13/345 ,  G01S3/465 ,  G01S7/354 ,  G01S13/343 ,  G01S13/42 ,  G01S13/58 ,  G01S13/931

摘要： A radar apparatus includes a transmitter, a receiver, and a signal processor. The transmitter outputs a radar wave. The receiver includes a plurality of receiving antennas and a plurality of receiving devices. Each of the receiving devices mixes a reception signal from the corresponding receiving antenna with a local signal and outputs a beat signal. The signal processor samples the beat signal while selecting one of the receiving devices in order with a selecting period that is less than a half of a sampling period. The signal processor samples the beat signal with the sampling period and derives position information of a target by pair matching of peaks of a rising-modulation signal and a falling-modulation signal of the beat signal.

摘要翻译： 雷达装置包括发射机，接收机和信号处理器。 发射机输出雷达波。 接收机包括多个接收天线和多个接收设备。 每个接收装置将来自相应接收天线的接收信号与本地信号混合并输出拍频信号。 信号处理器在选择其中一个接收装置的同时选择小于采样周期的一半的选择周期来取样拍频信号。 信号处理器以采样周期对拍频信号进行采样，并通过对上升调制信号的峰值和拍频信号的下降调制信号进行配对匹配来获得目标的位置信息。

公开(公告)号：US20100225523A1

公开(公告)日：2010-09-09

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

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波瓣的方向，从而抑制从栅瓣起源的接收的反射波的影响。

公开(公告)号：US20080088498A1

公开(公告)日：2008-04-17

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： G01S7/02

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：US06337656B1

公开(公告)日：2002-01-08

申请号：US09583534

申请日：2000-06-01

申请人： Kazuma Natsume ,  Hiroshi Hazumi ,  Hiroaki Kumon

发明人： Kazuma Natsume ,  Hiroshi Hazumi ,  Hiroaki Kumon

IPC分类号： G01S1300

CPC分类号： G01S13/48 ,  G01S13/44 ,  G01S13/87

摘要： A radar apparatus is provided which is capable of discriminating between azimuth angles of two or more targets moving side by side close to each other. The radar apparatus provides antenna beams which partially overlap with each other to define a plurality of monopulse areas and processes input signals produced in each of the monopulse areas to obtain angular direction data. The radar apparatus determines a time-sequential variation in angular direction data in each of the monopulse areas and determines the angular direction data whose variation is within a preselected allowable range as being effective in determining the angular direction of each target correctly.

摘要翻译： 提供了能够区分彼此靠近并排移动的两个以上的目标的方位角的雷达装置。 该雷达装置提供天线波束，其彼此部分重叠以限定多个单脉冲区域并处理在每个单脉冲区域中产生的输入信号以获得角度方向数据。 雷达装置确定每个单脉冲区域中的角度方向数据的时间顺序变化，并确定其变化在预选容许范围内的角度方向数据有效地确定每个目标的角度方向。

公开(公告)号：US09360548B2

公开(公告)日：2016-06-07

申请号：US13415227

申请日：2012-03-08

申请人： Yusuke Kato ,  Kazuma Natsume

发明人： Yusuke Kato ,  Kazuma Natsume

IPC分类号： G01S7/02 ,  G01S13/34 ,  G01S13/58 ,  G01S13/93

CPC分类号： G01S7/023 ,  G01S13/345 ,  G01S13/584 ,  G01S13/931 ,  G01S2013/9321

摘要： A power-supply device for supplying electrical power to a radar device that transmits and receives a continuous wave and detects an object reflecting the continuous wave on the basis of a spectrum of a beat signal of the transmitted and reflected waves. The power-supply device includes a power supply section that generates electrical power in a predefined voltage range through a switching section being turned on and off in response to a switching signal, and a switching signal output section that, outputs the switching signal whose frequency is set within one of assignable bands. This leads to a radar system comprised of the radar device and the power-supply device, capable of securely preventing erroneous detection of a frequency peak of the switching signal as a frequency peak of the object.

摘要翻译： 一种供电装置，用于向发射和接收连续波的雷达装置提供电力，并且基于发射和反射波的拍频信号的频谱来检测反映连续波的物体。 电源装置包括：电源部，其通过响应于开关信号而导通和截止的开关部分产生预定电压范围内的电力;以及切换信号输出部，其输出频率为 设置在可分配的频带之一内。 这导致由雷达装置和电源装置组成的雷达系统，能够可靠地防止作为对象的频率峰值的切换信号的频率峰值的错误检测。

公开(公告)号：US07688255B2

公开(公告)日：2010-03-30

申请号：US11676684

申请日：2007-02-20

申请人： Koichiro Suzuki ,  Chiharu Yamano ,  Gaku Takano ,  Kazuma Natsume

发明人： Koichiro Suzuki ,  Chiharu Yamano ,  Gaku Takano ,  Kazuma Natsume

IPC分类号： G01S13/34 ,  G01S13/58 ,  G01S13/00

CPC分类号： G01S13/931 ,  G01S13/345 ,  G01S13/426 ,  G01S13/584

摘要： An electronic scanning radar apparatus has a cutting portion for cutting receiving data which is comprised of N numbers of data for each channel into two more short time data having M (

摘要翻译： 电子扫描雷达装置具有切割部分，用于将每个通道的N个数据数据的接收数据切割成具有每个通道的时间方向上的M（N）个数据的两个更短的时间数据;逆矩阵 用于从短时间数据计算和估计时间序列相关矩阵的逆矩阵的估计器;以及相位信息产生部分，用于计算时间序列相关矩阵的估计逆矩阵中的CAPON相位信息，以便检测距离， 基于计算出的CAPON相位信息的目标的方位角和相对速度。

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

CPC分类号： G01S3/74 ,  G01S7/35 ,  G01S13/34 ,  G01S13/345 ,  G01S13/42 ,  G01S13/48

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。

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

IPC分类号： G01S7/02 ,  G01S13/93

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。

公开(公告)号：US07271761B2

公开(公告)日：2007-09-18

申请号：US10690843

申请日：2003-10-23

申请人： Kazuma Natsume ,  Hiroshi Hazumi

发明人： Kazuma Natsume ,  Hiroshi Hazumi

IPC分类号： G01S13/34 ,  G01S13/93

CPC分类号： G01S13/34 ,  G01S13/343 ,  G01S13/931 ,  G01S2013/9321 ,  G01S2013/9325 ,  G01S2013/9346

摘要： In a system, a frequency-modulating unit is configured to frequency-modulate a radar wave signal within a predetermined frequency modulation range from bottom to top so that a frequency of the frequency-modulated radar wave changes in time. The rate of frequency change of the radar wave signal in time is set to F0/Tf. The F0 represents a center frequency in the frequency modulation range. The Tf represents the predetermined constant time. A mixing unit is configured to mix the transmitted frequency-modulated radar wave signal and the reflection signal to obtain a beat signal. The beat signal is based on a frequency difference between a frequency of the transmitted radar wave signal and that of the reflection signal. A sweeping unit is configured to sweep the beat signal within the frequency modulation range from one of the bottom and the top to the other thereof to obtain a frequency component of the beat signal. An obtaining unit is configured to obtain the prediction distance based on a relationship between the frequency component of the beat signal and the prediction distance.

摘要翻译： 在一个系统中，频率调制单元被配置为在从下到上的预定频率调制范围内对雷达波信号进行频率调制，使得调频雷达波的频率随时间而变化。 雷达波信号在时间上的频率变化率设定为F0 / Tf。 F0表示频率调制范围内的中心频率。 Tf表示预定的恒定时间。 混合单元被配置为混合发射的调频雷达波信号和反射信号以获得拍频信号。 拍频信号基于发射的雷达波信号的频率与反射信号的频率之间的频率差。 扫描单元被配置为在频率调制范围内扫描从底部和顶部之一到另一个的频率信号，以获得拍频信号的频率分量。 获取单元被配置为基于拍子信号的频率分量与预测距离之间的关系来获得预测距离。

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。