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1. 发明授权

US08471775B2 Array antenna and radar apparatus 有权
标题翻译：阵列天线和雷达设备
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。

2. 发明申请

US20080036645A1 ELECTRONIC SCANNING RADAR APPARATUS 有权
标题翻译：电子扫描雷达设备
公开(公告)号：US20080036645A1
公开(公告)日：2008-02-14
申请号：US11676741
申请日：2007-02-20
申请人： Chiharu Yamano , Kazuma Natsume , Yuu Watanabe , Mai Sakamoto
发明人： Chiharu Yamano , Kazuma Natsume , Yuu Watanabe , Mai Sakamoto
IPC分类号： G01S7/02 , H01Q3/26
CPC分类号： G01S7/4021 , G01S7/023 , G01S7/352 , G01S13/931 , G01S2007/356
摘要： A sampled beat signal is cut out into two or more short time data in a time direction concerning each antenna component. From a frequency spectrum of the short time data, an interference element frequency of an interference wave is detected. From the interference element frequency of the interference wave, two or more candidates of the frequency before aliasing of the interference wave are produced, and phase correction is executed on each candidate. Digital Beamforming is executed on the corrected frequency so as to extract maximum peaks of the power of an azimuth direction, and the frequency candidate showing the maximum peak power is selected and the arrival azimuth of the interference element is estimated. A filter for suppressing the interference element is applied on the short time data from the estimated arrival azimuth of the interference element so as to suppress the interference element.
摘要翻译：在每个天线部件的时间方向上将采样的拍频信号切成两个以上的短时间数据。根据短时间数据的频谱，检测干扰波的干扰要素频率。根据干扰波的干扰要素频率，产生干扰波混叠前的频率的两个以上候选，对每个候选进行相位校正。在校正后的频率上执行数字波束成形，以提取方位方向的功率的最大峰值，并且选择表示最大峰值功率的频率候选，并估计干扰要素的到达方位角。用于抑制干扰要素的滤波器从干扰要素的预计到达方位施加在短时间数据上，以便抑制干扰要素。

3. 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。

4. 发明授权

US07439903B2 Method of preventing interference between radars and radar system having interference preventing function 有权
标题翻译：防止雷达与具有防干扰功能的雷达系统之间的干扰的方法
公开(公告)号：US07439903B2
公开(公告)日：2008-10-21
申请号：US11417336
申请日：2006-05-03
申请人： Yuu Watanabe , Kazuma Natsume
发明人： Yuu Watanabe , Kazuma Natsume
IPC分类号： G01S13/00
CPC分类号： G01S7/36 , G01S13/931 , G01S2013/9325 , G01S2013/9346 , G01S2013/935 , G01S2013/9353 , G01S2013/9375 , G01S2013/9378
摘要： A radar system mounted on a vehicle includes a first radar and a second radar, each having a transmitter-receiver and a signal processor. The transmitter-receiver transmits radar waves to detect objects such as another vehicle or other obstacles. An operating cycle period T1, T2 and a transmission time X1, X2 during which the radar waves are transmitted are set in both radars to satisfy the formula: K·T2+X2+X1≦T1≦(K+1)·T2−X2−X1 under a condition that T1>T2, where K is a positive integer. By setting both radars in this manner, interference between two radars is avoided without using additional devices in the radar system, and a high detection accuracy is realized.
摘要翻译：安装在车辆上的雷达系统包括第一雷达和第二雷达，每个具有发射机 - 接收机和信号处理器。发射机 - 接收机发射雷达波以检测诸如其他车辆或其他障碍物的物体。在两个雷达中设置操作周期T 1，T 2以及发送雷达波的发送时间X 1，X 2，以满足下列公式：KT + X + X 1 <= T 1 <=（ K + 1）.T 2- X 2- X 1，条件是T 1> T 2，其中K是正整数。通过以这种方式设置两个雷达，避免了在雷达系统中使用附加设备的两个雷达之间的干扰，并且实现了高检测精度。

5. 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。

6. 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。

7. 发明授权

US07339518B2 FMCW radar device and method for detecting interference 有权
标题翻译： FMCW雷达装置及其检测方法
公开(公告)号：US07339518B2
公开(公告)日：2008-03-04
申请号：US11351502
申请日：2006-02-10
申请人： Kazuma Natsume , Yuu Watanabe
发明人： Kazuma Natsume , Yuu Watanabe
IPC分类号： G01S13/42 , G01S13/93
CPC分类号： G01S7/36 , G01S7/023 , G01S13/345 , G01S13/931 , G01S2007/356 , G01S2013/9325 , G01S2013/9375
摘要： An FMCW radar device executes a frequency analysis for a beat signal in a frequency increase interval and a frequency decrease interval, to obtain frequency components in a predetermined high frequency range exceeding a frequency range corresponding to a target detection frequency range within which a target object for detection should be detected. Then the FMCW radar device calculates a value related to a sum of intensities of frequency components within the high frequency range respectively for each of the frequency increase interval and the frequency decrease interval. In the case that one of the calculated integrals is larger than a threshold, the FMCW radar device determines that the FMCW radar device is interfered with by a nearby radar device.
摘要翻译： FMCW雷达装置对频率增加间隔和频率下降间隔中的差拍信号进行频率分析，以获得超过与目标检测频率范围对应的频率范围的预定高频范围内的频率分量，在该频率范围内，应检测检测。然后，FMCW雷达装置分别针对频率增加间隔和频率下降间隔中的每个频率分量计算与高频范围内的频率分量的强度之和相关的值。在计算的积分中的一个大于阈值的情况下，FMCW雷达装置确定FMCW雷达装置被附近的雷达装置干扰。

8. 发明申请

US20070018886A1 INTERFERENCE DETERMINATION METHOD AND FMCW RADAR USING THE SAME 有权
标题翻译：干涉测定方法和使用它的FMCW雷达
公开(公告)号：US20070018886A1
公开(公告)日：2007-01-25
申请号：US11403995
申请日：2006-04-13
申请人： Yuu Watanabe , Kazuma Natsume
发明人： Yuu Watanabe , Kazuma Natsume
IPC分类号： G01S7/40 , G01S7/35 , G01S13/34
CPC分类号： G01S13/345 , G01S7/023 , G01S13/931
摘要： Occurrence of interference is detected using sampled amplitude data obtained by oversampling a beat signal. It is detected by comparing the absolute value (|VD|) of variation in the sampled data with a threshold value (TH). When interference occurs, a wideband signal is superposed on the beat signal, and this disturbs the signal waveform of the beat signal to drastically varies its amplitude. Therefore, occurrence of interference can be detected without fail regardless of the scheme on which a radar as the source of an interference wave is based and even when the amplitude of the interference wave is low. In addition, when low-frequency noise is superposed on the beat signal, erroneous detection of occurrence of interference can be prevented.
摘要翻译：使用通过过采样拍频信号获得的采样振幅数据来检测干扰的发生。通过将采样数据的变化的绝对值（| VD |）与阈值（TH）进行比较来检测。当发生干扰时，宽带信号叠加在节拍信号上，这样会扰乱拍频信号的信号波形，从而大大改变其幅度。因此，即使干扰波的幅度低，雷达作为干扰波的来源，即使是干扰波源也是可以的，所以能够毫无疑问地检测出干扰的发生。此外，当低频噪声叠加在节拍信号上时，可以防止发生干扰的错误检测。

9. 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。

10. 发明授权

US07187321B2 Interference determination method and FMCW radar using the same 有权
标题翻译：干扰测定方法和FMCW雷达使用相同
公开(公告)号：US07187321B2
公开(公告)日：2007-03-06
申请号：US11403995
申请日：2006-04-13
申请人： Yuu Watanabe , Kazuma Natsume
发明人： Yuu Watanabe , Kazuma Natsume
IPC分类号： G01S7/40 , G01S7/35 , G01S13/34 , G01S13/93
CPC分类号： G01S13/345 , G01S7/023 , G01S13/931
摘要： Occurrence of interference is detected using sampled amplitude data obtained by oversampling a beat signal. It is detected by comparing the absolute value (|VD|) of variation in the sampled data with a threshold value (TH). When interference occurs, a wideband signal is superposed on the beat signal, and this disturbs the signal waveform of the beat signal to drastically varies its amplitude. Therefore, occurrence of interference can be detected without fail regardless of the scheme on which a radar as the source of an interference wave is based and even when the amplitude of the interference wave is low. In addition, when low-frequency noise is superposed on the beat signal, erroneous detection of occurrence of interference can be prevented.
摘要翻译：使用通过过采样拍频信号获得的采样振幅数据来检测干扰的发生。通过将采样数据的变化的绝对值（| VD |）与阈值（TH）进行比较来检测。当发生干扰时，宽带信号叠加在节拍信号上，这样会扰乱拍频信号的信号波形，从而大大改变其幅度。因此，即使干扰波的幅度低，雷达作为干扰波的来源，即使是干扰波源也是可以的，所以能够毫无疑问地检测出干扰的发生。此外，当低频噪声叠加在节拍信号上时，可以防止发生干扰的错误检测。

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