公开(公告)号：US20120127016A1

公开(公告)日：2012-05-24

申请号：US13298556

申请日：2011-11-17

申请人： Yuu Watanabe ,  Koichiro Suzuki ,  Chiharu Yamano

发明人： Yuu Watanabe ,  Koichiro Suzuki ,  Chiharu Yamano

IPC分类号： G01S13/00 ,  G01S13/42

CPC分类号： G01S13/34 ,  G01S3/74 ,  G01S7/412 ,  G01S13/345 ,  G01S13/42 ,  G01S13/584 ,  G01S13/931 ,  G01S2013/9353 ,  G01S2013/9375 ,  G08G1/16

摘要： A signal processing unit in a radar device calculates a change amount Y (=log(P)−log(Pb)) between a power P of a current arrival echo and a power of a previous arrival echo arrived before an observation period TSW. A memory unit in the radar device stores, every type of objects, a probability distribution of the change amount Y calculated from the arrival echo from the object. On the basis of the calculated change amount Y and the probability distribution, the signal processing unit determines a probability Pr to obtain the change amount Y every type of object, and determines that the object having the maximum probability Pr is the object which transmits the current arrival echo.

摘要翻译： 雷达装置中的信号处理单元计算当前到达回波的功率P与在观测期间TSW之前到达的先前到达回波的功率之间的变化量Y（= log（P）-log（Pb））。 雷达装置中的存储单元存储从对象的到达回波计算的变化量Y的概率分布。 根据计算出的变化量Y和概率分布，信号处理单元确定概率Pr以获得每种类型的对象的变化量Y，并且确定具有最大概率Pr的对象是发送当前的对象 到达回声。

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。

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。

公开(公告)号：US20060181448A1

公开(公告)日：2006-08-17

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： G01S13/93 ,  G01S13/58

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。

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。

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。

公开(公告)号：US20100238067A1

公开(公告)日：2010-09-23

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： G01S13/32 ,  H01Q21/00 ,  G01S13/00

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：US20060262009A1

公开(公告)日：2006-11-23

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： G01S13/93

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。

公开(公告)号：US20100164645A1

公开(公告)日：2010-07-01

申请号：US12676335

申请日：2007-09-14

申请人： Kazuhiko Kobayashi ,  Yuu Watanabe ,  Paulo Augusto Dal Fabbro ,  Maher Kayal

发明人： Kazuhiko Kobayashi ,  Yuu Watanabe ,  Paulo Augusto Dal Fabbro ,  Maher Kayal

IPC分类号： H03H7/38

CPC分类号： H03F1/565 ,  H03F3/195 ,  H03F2200/144 ,  H03F2200/222 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/451 ,  H03F2200/453 ,  H03F2200/456 ,  H03F2200/541 ,  H03H7/38 ,  H03H11/40

摘要： The tunable impedance circuit comprises capacitors C1 and C2, an inductor L1, and an inductor L2 magnetically coupled with the inductor L1. The control current Icontrol with variable phase and amplitude from the control circuit 13 flows in the inductor L2. The impedance of the inductor L1 is changed by changing the phase and amplitude of the control current Icontrol. The output impedance is set to an optimum level by setting an effective inductance and an effective quality factor of the tunable impedance circuit 12a to be optimum by means of the phase and amplitude of the control current Icontrol relative to output current IRF of RF PA 11.

摘要翻译： 可调谐阻抗电路包括电容器C1和C2，电感器L1和与电感器L1磁耦合的电感器L2。 来自控制电路13的具有可变相位和振幅的控制电流Icontrol在电感器L2中流动。 通过改变控制电流Icontrol的相位和幅度来改变电感L1的阻抗。 通过将控制电流Icontrol的相位和幅度相对于RF PA11的输出电流IRF设置为可调谐阻抗电路12a的有效电感和有效质量因子来将输出阻抗设置为最佳电平。

公开(公告)号：US06455361B1

公开(公告)日：2002-09-24

申请号：US09635918

申请日：2000-08-10

申请人： Mizuhisa Nihei ,  Yuu Watanabe

发明人： Mizuhisa Nihei ,  Yuu Watanabe

IPC分类号： H01L21338

CPC分类号： H01L29/66871 ,  H01L21/28575 ,  H01L29/42316

摘要： A gate electrode rectangular in section is formed by patterning on a GaAs substrate as a compound substrate having a channel layer. Subsequently, a specific metal, e.g., Ti is deposited. A solid-phase reaction layer to serve as source/drain is formed in a self-alignment manner with the gate electrode by a thermal treatment. The part of the Ti film which has not been reacted is then removed. Thus the source/drain (or at least one of them) are very easily formed to a shallow junction depth without using any ion implantation process. Realized is a semiconductor device showing an excellent device characteristics, capable of suppressing occurrence of short-channel effect even in its shortened gate length for reducing the device size.

摘要翻译： 通过在GaAs衬底上构图作为具有沟道层的复合衬底来形成截面为矩形的栅电极。 随后，沉积特定的金属，例如Ti。 通过热处理以与栅电极自对准的方式形成用作源极/漏极的固相反应层。 然后除去未反应的部分Ti膜。 因此，源/漏（或它们中的至少一个）非常容易地形成为浅结深度，而不使用任何离子注入工艺。 实现了显示出优异的器件特性的半导体器件，即使在缩短栅极长度以减少器件尺寸的同时也能够抑制短沟道效应的发生。