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：US06339395B1

公开(公告)日：2002-01-15

申请号：US09538499

申请日：2000-03-30

申请人： Hiroshi Hazumi ,  Kazuma Natsume

发明人： Hiroshi Hazumi ,  Kazuma Natsume

IPC分类号： G01S1334

CPC分类号： G01S13/345 ,  G01S7/288 ,  G01S13/32 ,  G01S13/348 ,  G01S2007/2883 ,  G01S2013/9321

摘要： A radar apparatus is provided which is designed to form digital beams using beat signals each of which is produced by one of a plurality of receivers and analyze the frequency of the beat signals in units of the beams for obtaining data such as the distance to, relative speed, and azimuth of a target. The apparatus performs the complex Fourier Transform twice on beat signals in time series and space series along the array of receiving antennas to derive results of the frequency analysis in units of the beams, thereby resulting in simplified structure and decrease in operation load of the apparatus.

摘要翻译： 提供一种雷达装置，其被设计为使用每个由多个接收机之一产生的拍频信号形成数字波束，并以波束为单位分析拍频信号的频率，以获得诸如距离 速度和方位角。 该装置沿着接收天线阵列以时间序列和空间序列的拍子信号两次执行复数傅立叶变换，以得出以波束为单位的频率分析结果，从而导致装置的简化结构和操作负载的降低。

公开(公告)号：US07151482B2

公开(公告)日：2006-12-19

申请号：US10765846

申请日：2004-01-29

申请人： Kazuma Natsume ,  Hiroshi Hazumi

发明人： Kazuma Natsume ,  Hiroshi Hazumi

IPC分类号： G01S13/06 ,  G01S7/40 ,  H01Q21/06 ,  G01S13/93 ,  H01Q1/32

CPC分类号： G01S13/343 ,  H01Q3/24

摘要： A radar device (2) includes plural transmission antennas and plural reception antennas. The reception antennas constitute a reception-side antenna portion (20) and are arranged at an interval of d. The transmission antennas constitute a transmission-side antenna portion (18) and are arranged at an interval of d′=d×(n−1). The path length at which the electric wave is reflected from a target is identical between channels A9 and B1, and seventeen kinds of channels (A1 to A8, A9 or B1, B2 to B9) which are different in path length by every fixed distance are achieved. The data of the channels (A1 to A9 and B1 to B9) using different transmission antennas are respectively collected in different measuring cycles, and an error based on the time difference between the measuring cycles is corrected on the basis of a correction value calculated from the data of the channels A9, B1.

摘要翻译： 雷达装置（2）包括多个发送天线和多个接收天线。 接收天线构成接收侧天线部（20），并以d间隔配置。 发送天线构成发送侧天线部（18），并且以d'= dx（n-1）的间隔配置。 电波从目标反射的路径长度在通道A 9和B 1之间相同，17种通道（A 1至A 8，A 9或B 1，B 2至B 9）不同 实现了每个固定距离的路径长度。 使用不同的发送天线的信道（A 1〜A 9和B 1〜B 9）的数据分别以不同的测量周期收集，并且基于校正周期之间的时间差的误差被校正 根据通道A 9，B 1的数据计算出的值。

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：US20110128547A1

公开(公告)日：2011-06-02

申请号：US12927923

申请日：2010-11-30

申请人： Taro Beppu ,  Kiyokazu Takagi ,  Takashi Ogawa ,  Hiroshi Hazumi

发明人： Taro Beppu ,  Kiyokazu Takagi ,  Takashi Ogawa ,  Hiroshi Hazumi

IPC分类号： G01N21/55

CPC分类号： G01S7/42 ,  G01S17/936

摘要： An object recognition apparatus performs a sweep of a scanned region by transmitting scanning wave beams at respective scan angles and successive timings, derives a received-wave signal strength value and reflection location corresponding to each scan wave beam during the sweep, and assigns a set of mutually adjacent reflection locations as a segment. A corresponding range value of the segment is calculated, expressing an estimated distance of a detected object. A threshold value is derived in accordance with the segment range, a region of the segment in which the signal strength values exceed the threshold value is extracted, and the width of the extracted region is designated as the width of the detected object.

摘要翻译： 物体识别装置通过以各扫描角度和连续定时发射扫描波束来执行扫描区域的扫描，在扫描期间导出与每个扫描波束对应的接收波信号强度值和反射位置，并分配一组 相互相邻的反射位置作为段。 计算出段的相应范围值，表示检测对象的估计距离。 根据段范围导出阈值，提取信号强度值超过阈值的段的区域，并将提取的区域的宽度指定为检测对象的宽度。

公开(公告)号：US5751240A

公开(公告)日：1998-05-12

申请号：US764627

申请日：1996-12-11

申请人： Akihiso Fujita ,  Hiroshi Hazumi ,  Hiroshi Mizuno ,  Hiroto Nakatani ,  Hiroshi Naganawa

发明人： Akihiso Fujita ,  Hiroshi Hazumi ,  Hiroshi Mizuno ,  Hiroto Nakatani ,  Hiroshi Naganawa

IPC分类号： G01S7/288 ,  G01S13/34 ,  G01S13/536 ,  G01S13/60 ,  G01S13/87 ,  G01S13/93

CPC分类号： G01S13/34 ,  G01S13/536 ,  G01S13/87 ,  G01S13/345 ,  G01S2007/2883

摘要： Beat signals of respective receiver channels CH1 and CH2, produced by mixing their receiving signals with a transmission signal, are subjected to Fourier transformation to detect the frequency and phase of peak frequency components in both an ascending-section where the frequency of the transmission increases and a descending-section where the frequency of the transmission decreases. Based on peak frequency components derived from the same target, phase differences .DELTA..phi.u(i) and .DELTA..phi.d(j) between receiver channels CH1 and CH2 in the ascending- and descending-sections (steps 210-230). Relative relationship between the transmission signal and the receiving signal is judged based on the signs of the phase differences. Respective peak frequencies fu(i) and fd(j), detected as absolute values of frequency differences between the transmission signal and the receiving signal, are given sings in accordance with the judgement result. Then, the distance D and relative velocity V of the target are calculated (steps 240-260).

摘要翻译： 通过将其接收信号与发送信号混合产生的各个接收机信道CH1和CH2的跳动信号进行傅里叶变换，以检测传输频率增加的上升部分中的峰值频率分量的频率和相位， 传输频率降低的下降部分。 基于从相同目标导出的峰值频率分量，在上升和下降部分中的接收机信道CH1和CH2之间的相位差DELTA phi u（i）和DELTA phi d（j）（步骤210-230）。 基于相位差的符号判断发送信号与接收信号之间的相对关系。 根据判断结果给出作为发送信号与接收信号之间的频率差的绝对值检测出的各个峰值频率fu（i）和fd（j）。 然后，计算目标的距离D和相对速度V（步骤240-260）。

公开(公告)号：US5977904A

公开(公告)日：1999-11-02

申请号：US48259

申请日：1998-03-26

申请人： Hiroshi Mizuno ,  Hiroshi Hazumi ,  Takeshi Matsui

发明人： Hiroshi Mizuno ,  Hiroshi Hazumi ,  Takeshi Matsui

IPC分类号： H01P1/15 ,  G01S7/02 ,  G01S7/03 ,  G01S7/28 ,  H01Q1/32 ,  H01Q3/24 ,  H01Q19/06 ,  H01Q21/00 ,  H01Q21/08 ,  G01S13/93

CPC分类号： G01S13/931 ,  G01S13/422 ,  H01Q1/3233 ,  H01Q21/0006 ,  H01Q21/08 ,  G01S2013/9375

摘要： An aperture antenna suitable for a radar system of an automotive vehicle is provided which includes three or more primary radiators and a feeding circuit. The feeding circuit is designed to supply electromagnetic signals to adjacent two of the primary radiators through discrete feeders to radiate in phase electromagnetic waves and to extract signals received by the two of the primary radiators separately. This enables the radiation of radar waves over a wider area without increasing the radiation power.

摘要翻译： 提供适用于机动车辆的雷达系统的孔径天线，其包括三个或更多个主辐射器和馈电电路。 馈电电路设计成通过离散馈线向相邻的两个主辐射器提供电磁信号，以相位电磁波辐射并分别提取由两个主辐射器接收的信号。 这使得能够在更大范围内的雷达波的辐射而不增加辐射功率。

公开(公告)号：US5619208A

公开(公告)日：1997-04-08

申请号：US590829

申请日：1996-01-24

申请人： Yukimasa Tamatsu ,  Hiroshi Hazumi ,  Hiroto Nakatani

发明人： Yukimasa Tamatsu ,  Hiroshi Hazumi ,  Hiroto Nakatani

IPC分类号： G01S7/40 ,  G01S13/34 ,  G01S13/58 ,  G01S13/60 ,  G01S13/72 ,  G01S13/536 ,  G01S13/93

CPC分类号： G01S13/345 ,  G01S13/584 ,  G01S13/726 ,  G01S7/4004

摘要： In an FM-CW radar system, a beat signal is frequency-analyzed for selecting ascending-side beat frequencies and descending-side beat frequencies for a plurality of targets. By pairing the ascending-side and descending-side beat frequencies one by one from each side, all possible combinations thereof are prepared. Based on these beat frequency combinations, beat frequency combinations after a given time are predicted, respectively. If an ascending-side beat frequency and a descending-side beat frequency of the predicted beat frequency combination are found in ascending-side beat frequencies and descending-side beat frequencies of a beat signal selected after the given time, respectively, or in the neighborhood of them, respectively, the predicted beat frequency combination of the found ascending-side and descending-side beat frequencies is set as a correct beat frequency combination. A further correct beat frequency combination/combinations can be set in the same manner. Based on these correct beat frequency combinations, information about the targets can be correctly achieved.

摘要翻译： 在FM-CW雷达系统中，对于多个目标，对频率分析频率分析用于选择上升侧拍频和下降拍频。 通过从每侧逐个配对上升侧和下降侧拍频，准备其所有可能的组合。 基于这些节拍频率组合，分别预测给定时间之后的拍频组合。 如果分别在给定时间之后或在附近选择的节拍信号的上升侧拍频和下降侧拍频中找到预测拍频组合的上升侧拍频和下降拍频， 分别将发现的上升侧和下降侧拍频的预测拍频组合设定为正确的拍频组合。 可以以相同的方式设置进一步的正确拍频组合/组合。 基于这些正确的拍频组合，可以正确地实现关于目标的信息。

公开(公告)号：US08284383B2

公开(公告)日：2012-10-09

申请号：US12927923

申请日：2010-11-30

申请人： Taro Beppu ,  Kiyokazu Takagi ,  Takashi Ogawa ,  Hiroshi Hazumi

发明人： Taro Beppu ,  Kiyokazu Takagi ,  Takashi Ogawa ,  Hiroshi Hazumi

IPC分类号： G01C3/08 ,  G01S13/93 ,  G06K9/46

CPC分类号： G01S7/42 ,  G01S17/936

摘要： An object recognition apparatus performs a sweep of a scanned region by transmitting scanning wave beams at respective scan angles and successive timings, derives a received-wave signal strength value and reflection location corresponding to each scan wave beam during the sweep, and assigns a set of mutually adjacent reflection locations as a segment. A corresponding range value of the segment is calculated, expressing an estimated distance of a detected object. A threshold value is derived in accordance with the segment range, a region of the segment in which the signal strength values exceed the threshold value is extracted, and the width of the extracted region is designated as the width of the detected object.

摘要翻译： 物体识别装置通过以各扫描角度和连续定时发射扫描波束来执行扫描区域的扫描，在扫描期间导出与每个扫描波束对应的接收波信号强度值和反射位置，并分配一组 相互相邻的反射位置作为段。 计算出段的相应范围值，表示检测对象的估计距离。 根据段范围导出阈值，提取信号强度值超过阈值的段的区域，并将提取的区域的宽度指定为检测对象的宽度。

公开(公告)号：US06292129B1

公开(公告)日：2001-09-18

申请号：US09538500

申请日：2000-03-30

申请人： Kazuoki Matsugatani ,  Hiroshi Hazumi

发明人： Kazuoki Matsugatani ,  Hiroshi Hazumi

IPC分类号： G01S1393

CPC分类号： G01S7/352 ,  G01S13/345 ,  G01S13/42 ,  G01S13/48 ,  G01S13/584 ,  G01S13/931 ,  G01S2007/356

摘要： A radar apparatus is provided which includes a transmitter, a receiver, and a signal processor. The transmitter produces a transmit signal which is so modulated in frequency as to change with time cyclically and transmits the transmit signal as a radar wave. The receiver selectively establishes communication with one of receiving antennas and changes the communications with the receiving antennas in sequence in a cycle shorter than a cycle of a change in the frequency of the transmit signal to supply a series of signal components of input signals produced by the receiving antennas. The receiver mixes the series of signal components with a local signal having the same frequency as that of the transmit signal to produce a beat signal. The signal processor samples the beat signal to analyze frequency components thereof to determine the distance to, relative speed and azimuth of a target. These arrangements result in simplicity of the whole structure of the radar apparatus, thereby allowing radar information about the target to be obtained accurately by the compact structure.

摘要翻译： 提供了一种雷达装置，其包括发射机，接收机和信号处理器。 发射机产生一个频率如此调制的发射信号，随时间循环变化，并将发射信号作为雷达波发射。 接收机选择性地建立与接收天线中的一个的通信，并且以比发射信号的频率变化的周期更短的周期来顺序地改变与接收天线的通信，以提供由发射信号产生的输入信号的一系列信号分量 接收天线。 接收器将一系列信号分量与具有与发射信号相同频率的本地信号混合以产生拍频信号。 信号处理器对拍频信号进行采样以分析其频率分量，以确定目标的距离，相对速度和方位角。 这些结构使得雷达装置的整个结构简单化，从而通过紧凑的结构来准确地获得关于目标的雷达信息。