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公开(公告)号：US09628306B2
公开(公告)日：2017-04-18
申请号：US14867912
申请日：2015-09-28
发明人： Yoshihito Ishida , Yasushi Aoyagi , Kei Takahashi
CPC分类号： H04L25/4902 , G01S7/023 , G01S7/282 , G01S13/106 , G01S13/30 , H04L27/122
摘要： Provided is a pulse generation device capable of suitably adjusting and outputting a pulse pattern by a simple configuration. A pulse generation device (100) includes a radio frequency oscillator (110) that generates a carrier wave of a certain frequency, a baseband pulse generating unit (120) that generates a signal having a certain pulse shape at a baseband, a timing generator (130) that controls a timing to generate a pulse through the baseband pulse generating unit (120), and a mixer (140) that modulates the carrier wave output from the radio frequency oscillator (110) using the pulse output from the baseband pulse generating unit (120). The timing generator (130) can adjust a waveform of the pulse output from the baseband pulse generating unit (120).
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公开(公告)号：US10754019B2
公开(公告)日：2020-08-25
申请号：US15720936
申请日：2017-09-29
发明人： Yoshiyuki Ishida , Yasushi Aoyagi , Hiroyasu Yano
摘要： The objective of the present invention is to use a simple circuit configuration and simple signal processing to provide a pulse radar device with which it is possible to reduce the impact of local signal carrier leakage on a received signal, and which makes it possible to perform high precision angle measurement using a multi-beam system. In order to measure the angle of an object, a pulse radar device is provided with at least two receiving antennas, and a reception circuit is provided with a signal selection switch for selectively switching between received signals received by the receiving antennas. The received signal contains a local signal leakage component, and a DC level of the received signal varies with the switching of the signal selection switch. In order to eliminate the impact of such DC level variations, a high-pass filter is disposed between a mixer and a frequency analyzer.
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公开(公告)号：US10725163B2
公开(公告)日：2020-07-28
申请号：US15553160
申请日：2016-02-24
发明人： Hiroyasu Yano , Yasushi Aoyagi , Kodai Kukita
摘要： [OBJECT] To surely remove a multi-order echo or interference from another radar apparatus[ORGANIZATION] A radar apparatus transmitting pulse signals at predetermined repetition cycles and receiving and analyzing the pulse signals reflected by a target object to thereby detect the target object has: a setting means (control unit 11) setting so that at least a part of the repetition cycles of the pulse signals is different; a detection means (speed detection/object detection unit 16) detecting a distance to the target object specified by the pulse signal; and a removal means (clutter removal unit 17) removing the target object as clutter when the distance to the target object detected in the different repetition cycle or in a period subsequent to the different repetition cycle by the detection means and the distance to the target object detected in the period other than that by the detection means are different.
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公开(公告)号：US09459342B2
公开(公告)日：2016-10-04
申请号：US14035618
申请日：2013-09-24
发明人： Hiroyuki Itohara , Yasushi Aoyagi
摘要： A radar device capable of reducing load of a clustering process and improving the tracking performance is provided.A tracking calculation unit 116 of a radar device 100 performs a clustering process, in which an input detected data set is grouped into clusters, and a tracking process, in which an averaged value and a prediction value are calculated for each of the clusters. In the radar device 100, the shape of cluster areas for grouping the detected data is defined to be a fan shape. The clustering process and tracking process using fan-shaped cluster areas can reduce the load of the clustering process and improve the tracking performance.
摘要翻译： 雷达装置100的跟踪计算单元116执行将输入检测数据组分组为群集的聚类处理，以及针对每个群集计算平均值和预测值的跟踪处理。 在雷达装置100中，用于将检测到的数据分组的群集区域的形状被定义为扇形。 使用扇形聚类区域的聚类过程和跟踪过程可以减少聚类过程的负担并提高跟踪性能。
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公开(公告)号：US20140022114A1
公开(公告)日：2014-01-23
申请号：US14034060
申请日：2013-09-23
IPC分类号： G01S13/18
CPC分类号： G01S13/18 , G01S7/285 , G01S7/292 , G01S7/4021 , G01S13/4454 , G01S13/931 , G01S2007/2886
摘要： A pulse radar apparatus and a control method therefor are provided that can detect information about a target with a high degree of accuracy by allowing detection of target information at all times and updating a replica signal of a noise signal in order.When the number of sets of distance data n1 is determined to be more than the number of sets of all distance data Nr in step S5, it is determined that target information detection processing is finished, and replica signal generation processing is subsequently performed. The radar function is activated in steps S13, S15, S16, and the noise signal for each distance data is obtained in step S17. Thereafter, in steps S19, S21, S23, the first, second, and third background signals, respectively, are generated, and thereafter, in step S23, a replica signal is generated.
摘要翻译： 提供了一种脉冲雷达装置及其控制方法，其通过允许一直检测目标信息并且依次更新噪声信号的复制信号，可以高精度地检测关于目标的信息。 当在步骤S5中将距离数据组n1的数量确定为大于所有距离数据组Nr的数量时，确定目标信息检测处理结束，并且随后执行复制信号生成处理。 在步骤S13，S15，S16中激活雷达功能，并且在步骤S17中获得每个距离数据的噪声信号。 此后，分别在步骤S19，S21，S23中产生第一，第二和第三背景信号，之后在步骤S23中产生复制信号。
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公开(公告)号：US20140022110A1
公开(公告)日：2014-01-23
申请号：US14035618
申请日：2013-09-24
发明人： Hiroyuki ITOHARA , Yasushi Aoyagi
IPC分类号： G01S13/66
摘要： A radar device capable of reducing load of a clustering process and improving the tracking performance is provided.A tracking calculation unit 116 of a radar device 100 performs a clustering process, in which an input detected data set is grouped into clusters, and a tracking process, in which an averaged value and a prediction value are calculated for each of the clusters. In the radar device 100, the shape of cluster areas for grouping the detected data is defined to be a fan shape. The clustering process and tracking process using fan-shaped cluster areas can reduce the load of the clustering process and improve the tracking performance.
摘要翻译： 提供了能够减少聚类过程的负载并提高跟踪性能的雷达装置。 雷达装置100的跟踪计算单元116执行将输入检测数据组分组为群集的聚类处理，以及针对每个群集计算平均值和预测值的跟踪处理。 在雷达装置100中，用于将检测到的数据分组的群集区域的形状被定义为扇形。 使用扇形聚类区域的聚类过程和跟踪过程可以减少聚类过程的负担并提高跟踪性能。
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公开(公告)号：US10247819B2
公开(公告)日：2019-04-02
申请号：US14926142
申请日：2015-10-29
发明人： Yasushi Aoyagi , Hiroki Hirayama , Hiroyasu Yano
摘要： A radar system includes a plurality of radar devices each having a transmitting unit that transmits a high frequency signal to an object, a receiving unit that receives a signal reflected from the object, an individual control unit that controls transmission and reception timings, and a converting unit that converts an output of the receiving unit into digital data, and a central processing device having an integration process unit that processes information transmitted from the radar devices in association with positional information of the radar devices, a command control unit that controls operation timings of the individual control units, and a detection process unit that performs a process for detecting the object on the digital data before being processed by the integration process unit. Digital communication isolated from the transmission and reception timing controls at the individual control unit is performed between the radar devices and the central processing device.
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公开(公告)号：US09509534B2
公开(公告)日：2016-11-29
申请号：US14867912
申请日：2015-09-28
发明人： Yoshihito Ishida , Yasushi Aoyagi , Kei Takahashi
摘要： Provided is a pulse generation device capable of suitably adjusting and outputting a pulse pattern by a simple configuration. A pulse generation device (100) includes a radio frequency oscillator (110) that generates a carrier wave of a certain frequency, a baseband pulse generating unit (120) that generates a signal having a certain pulse shape at a baseband, a timing generator (130) that controls a timing to generate a pulse through the baseband pulse generating unit (120), and a mixer (140) that modulates the carrier wave output from the radio frequency oscillator (110) using the pulse output from the baseband pulse generating unit (120). The timing generator (130) can adjust a waveform of the pulse output from the baseband pulse generating unit (120).
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公开(公告)号：US20210263146A1
公开(公告)日：2021-08-26
申请号：US17205057
申请日：2021-03-18
发明人： Satoshi Otowa , Yasushi Aoyagi
IPC分类号： G01S13/931 , G01S13/87 , G01S13/34
摘要： A radar apparatus includes a first radar apparatus that transmits and receives a signal with a first frequency and has a first detection area, and a second radar apparatus that transmits and receives a signal with a second frequency different from the first frequency and has a second detection area different from the first detection area. The first radar apparatus and the second radar apparatus are arranged on a vehicle such that the first detection area and the second detection area partially overlap with each other. The second radar apparatus generates second information. The first radar apparatus generates first information, performs arithmetic integration processing based on the first information and the second information to generate integrated information, and transmits the integrated information to a higher-level apparatus.
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公开(公告)号：US10901078B2
公开(公告)日：2021-01-26
申请号：US15974935
申请日：2018-05-09
发明人： Yasushi Aoyagi , Nobuyuki Shimizu
摘要： A monitoring device to monitor traffic behind and on both sides of a vehicle includes a radar detecting a traveling object in a pair of first detection areas that are defined behind and on left and right sides, respectively, of the vehicle and in a pair of second detection areas that are defined behind and on the left and right sides, respectively, of the vehicle, the second detection area having a width in a vehicle width direction narrower than a width of the first detection area; a detector detecting a moving direction in which the vehicle is moving and other moving indicators to find a moving status of the vehicle; and a processor causing the radar to switch to the second detection areas when the detected moving status indicates that the moving direction of the vehicle is straight ahead and at least one other moving indicator satisfies a prescribed condition.
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