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公开(公告)号：US11670866B2
公开(公告)日：2023-06-06
申请号：US17184126
申请日：2021-02-24
发明人： Takaaki Kishigami
CPC分类号： H01Q21/0025 , G01S7/032 , G01S13/284 , G01S13/42 , H01Q21/061
摘要： A transmitting array antenna includes a second antenna group placed in a position inside a first antenna group in a first direction and a position different from the first antenna group in a second direction. A receiving array antenna includes a fourth antenna placed in a position outside a third antenna group arranged in the first direction and a position different from the third antenna group in the second direction. An interelement spacing between a receiving antenna of the third antenna group located at an end on a second side is identical to an interelement spacing in the first direction between a transmitting antenna of the first antenna group on the first side and each of the second antenna group. In a case where the first antenna group and the third antenna group are identical in position in the second direction, positions of antennas are different.
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公开(公告)号：US09921305B2
公开(公告)日：2018-03-20
申请号：US14754257
申请日：2015-06-29
IPC分类号： G01S13/42 , G01S7/292 , G01S7/40 , G01S13/28 , G01S13/522 , G01S13/58 , G01S13/72 , G01S13/93 , G01S7/282 , G01S7/285 , G01S13/02
CPC分类号： G01S13/42 , G01S7/282 , G01S7/285 , G01S7/2927 , G01S7/4026 , G01S13/28 , G01S13/284 , G01S13/522 , G01S13/584 , G01S13/726 , G01S13/931 , G01S2013/0245
摘要： A radar apparatus includes an antenna that receives echo signals, each of the echo signals being a radar signal reflected by one or more objects; a Doppler-frequency acquirer that acquires Doppler frequencies at each range bin from the received echo signals; a direction correlation power-value calculator that calculates direction correlation power values for respective combinations of the Doppler frequencies and at least one of a distance to the one or more objects and an arrival direction of the echo signals, each direction correlation power value indicating a strength of a corresponding echo signal; and a normalized direction correlation-value calculator that calculates, for the respective combinations, normalized direction correlation values, each normalized direction correlation value indicating a probability of the arrival direction of the corresponding echo signal.
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3.发明申请公开(公告)号：US20170343661A1
公开(公告)日：2017-11-30
申请号：US15600437
申请日：2017-05-19
发明人： TADASHI MORITA , HIROSHI TANAKA
CPC分类号： G01S13/106 , G01S7/006 , G01S7/282 , G01S7/2921 , G01S7/4008 , G01S7/4021 , G01S13/284 , G01S13/288
摘要： A pulse radar includes pulse generation circuitry that generates a transmission pulse signal, radio frequency transmission circuitry that transmits a radio frequency signal obtained by performing a frequency conversion on the transmission pulse signal, radio frequency reception circuitry that converts a reflected-wave signal to a reception pulse signal, the reflected-wave signal being a part of the radio frequency signal reflected back from an object to be measured and received via a reception antenna, signal processing circuitry that calculates a distance between the object and the pulse radar, detection circuitry that detects a main pulse, and correction filter coefficient calculation circuitry that calculates an amount of delay and a phase difference of the one or more error pulses with reference to the main pulse to update a parameter of the correction filter circuitry. The correction filter circuitry updates a filter characteristic using the updated parameter.
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公开(公告)号：US09612324B2
公开(公告)日：2017-04-04
申请号：US14583353
申请日：2014-12-26
发明人： Tadashi Morita , Takaaki Kishigami
CPC分类号： G01S13/106 , G01S7/023 , G01S13/284
摘要： A transmission sequence generated by a first sector radar is a sequence obtained by multiplying a predetermined code sequence by a first orthogonalized code, and a transmission sequence generated by a second sector radar is a sequence obtained by multiplying a predetermined code sequence by a second orthogonalized code. A value obtained by multiplication of the ith element of the first orthogonalized code and the ith element of the second orthogonalized code is equal to the ith element of a fundamental sequence VV_2n having a length of 2n (n is an integer greater than or equal to 1). The fundamental sequence VV_2n includes a sub fundamental sequence VV_2(n−1) having a length of n and satisfies VV_2n={VV_2(n−1), −VV_2(n−1)} or {−VV_2(n−1), VV_2(n−1)}.
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公开(公告)号：US09547073B2
公开(公告)日：2017-01-17
申请号：US15074713
申请日：2016-03-18
IPC分类号： G01S13/91 , G01S7/41 , G08G1/015 , G08G1/052 , G01S13/92 , G01S13/58 , G01S13/28 , G01S13/00 , G01S13/87 , G01S7/40
CPC分类号： G01S7/411 , G01S7/41 , G01S13/003 , G01S13/284 , G01S13/58 , G01S13/581 , G01S13/878 , G01S13/91 , G01S13/92 , G01S2007/4091 , G08G1/015 , G08G1/052
摘要： A radar transmitting unit Tx transmits a radio-frequency radar transmission signal from a transmission antenna which is inclined in the direction of a depression angle φ. A radar receiving unit Rx estimates the height and speed of a vehicle which travels on a road surface using a reflected wave signal from the vehicle. A template generating unit 19 generates a variation in a phase component of the reflected wave signal corresponding to N heights and speeds of the vehicle as N templates. N vehicle height/speed template correlation calculation units #1 to #Nrep calculate correlation on the basis of any one of the N templates and a correlation value between the reflected wave signal and a transmission code of the radar transmission signal.
摘要翻译： 雷达发送单元Tx从发送天线发送射频雷达发送信号，该发送天线在俯角方向上倾斜。 雷达接收单元Rx使用来自车辆的反射波信号估计在路面上行驶的车辆的高度和速度。 模板生成单元19将与车辆的N高度和速度对应的反射波信号的相位分量的变化生成为N个模板。 N车高/速度模板相关计算单元＃1至#Nrep基于N个模板中的任一个和反射波信号与雷达发射信号的发送码之间的相关值计算相关性。
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公开(公告)号：US09372259B2
公开(公告)日：2016-06-21
申请号：US14123685
申请日：2012-08-09
CPC分类号： G01S13/103 , G01S7/28 , G01S7/2813 , G01S7/282 , G01S7/292 , G01S13/0209 , G01S13/26 , G01S13/28 , G01S13/284 , G01S13/288 , G01S13/30 , G01S13/91
摘要： A pulse transmission controller generates transmission timing signals for a high-frequency radar transmission signal in every transmission cycle. A transmission phase shifter gives a transmission signal generated by a modulator phase shifts each corresponding to a transmission cycle on the basis of the transmission timing signals generated at intervals that are equal to the transmission cycle. A reception phase shifter gives a reception signal that is output from an A/D converter reception phase shifts that are opposite in direction to the respective transmission phase shifts given by the transmission phase shifter on the basis of the transmission timing signals generated at intervals that are equal to the transmission cycle.
摘要翻译： 脉冲发送控制器在每个发送周期中产生用于高频雷达发送信号的发送定时信号。 发送移相器基于以等于发送周期的间隔生成的发送定时信号，给出通过调制器相位移而产生的发送信号，每个发送信号相应于发送周期。 接收移相器根据以间隔发生的发送定时信号，给出从A / D转换器接收相位偏移输出的接收信号，其方向与由发送移相器给出的各个发送相位相反， 等于传输周期。
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公开(公告)号：US09234956B2
公开(公告)日：2016-01-12
申请号：US14114135
申请日：2013-02-06
发明人： Takaaki Kishigami , Yoichi Nakagawa
CPC分类号： G01S3/74 , G01S13/284 , G01S13/42 , G01S13/931 , G01S2007/2886
摘要： A transmission beam control unit 8 changes a main beam direction of a radar transmission beam every predetermined number of transmission periods. A radar transmitting unit Tx transmits a radar transmission signal using the radar transmission beam of which the main beam direction has been changed. In a radar receiving unit Rx, an estimation range selection unit 22 selects an estimation range of the direction of arrival of a reflected wave signal by limiting the estimation range to the approximate transmission beam width on the basis of the transmission beam width of the radar transmission beam and the output from the transmission beam control unit 8. The direction-of-arrival estimation unit 23 estimates the direction of arrival of the reflected wave signal on the basis of phase information between a plurality of antennas according to the selected range.
摘要翻译： 发射束控制单元8每隔预定数量的发射周期改变雷达发射波束的主波束方向。 雷达发射单元Tx使用主波束方向已经改变的雷达传输波束来发射雷达传输信号。 在雷达接收单元Rx中，估计范围选择单元22基于雷达发射的发射波束宽度，将反射波信号的到达方向的估计范围通过将估计范围限制为近似发射波束宽度 波束和来自发送波束控制单元8的输出。到达方向估计单元23根据所选择的范围，根据多个天线之间的相位信息来估计反射波信号的到达方向。
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公开(公告)号：US09134405B2
公开(公告)日：2015-09-15
申请号：US13811641
申请日：2011-07-14
CPC分类号： G01S13/284 , G01S7/2813 , G01S7/285 , G01S13/288
摘要： A radar apparatus transmits a radio frequency transmission signal from a transmitter antenna in a given transmission period, and receives a signal of a reflected wave reflected by a target via a receiver antenna. The radar apparatus includes a transmission signal generator that generates a first transmission signal obtained by modifying a code having a third sub-code sequence and a fourth sub-code sequence coupled to each other in a first transmission period, and generates a second transmission period obtained by modifying a code having a fifth sub-code sequence and a sixth sub-code sequence coupled to each other in a second transmission period, and a transmitter RF unit that converts the first and second transmission signals into radio frequency transmission signals, and transmits the radio frequency transmission signals from the transmitter antenna.
摘要翻译： 雷达装置在给定的传输周期内从发射机天线发射射频信号，并通过接收机天线接收由目标反射的反射波的信号。 雷达装置包括：发送信号发生器，其生成通过在第一发送周期中修改具有彼此耦合的第三子码序列和第四子码序列的码而获得的第一发送信号，并且生成获得的第二发送周期 通过在第二发送周期中修改具有彼此耦合的第五子码序列和第六子码序列的码，以及将第一和第二发送信号转换为射频发送信号的发送器RF单元， 来自发射机天线的射频传输信号。
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公开(公告)号：US20150048967A1
公开(公告)日：2015-02-19
申请号：US14395453
申请日：2014-02-07
发明人： Tadashi Morita , Takaaki Kishigami
摘要： Respective sector radars generate first and second transmission signals by multiplying any one Spano code sequence and any one orthogonal code sequence, selected among 2(N+1) first and second Spano code sequences which are different from each other and 2(N+1) first and second orthogonal code sequences which are different from each other, in a predetermined order in each transmission period, where N is an integer of 1 or greater. Respective sector radars convert the first and second transmission signals into first and second high frequency signals, and transmit the first and second high frequency signals through first and second transmission antennas. The 2(N+1) first orthogonal code sequences and the 2(N+1) second orthogonal code sequences used in the respective sector radars are orthogonal over transmission periods of M multiples of 2(N+1), where M is an integer of 2 or greater.
摘要翻译： 相应的扇区雷达通过将彼此不同的2（N + 1）个第二和第二Spano编码序列中选择的任何一个Spano码序列和任何一个正交码序列相乘并产生第二和第二传输信号，并且2（N + 1） 在每个发送周期中以预定顺序彼此不同的第一和第二正交码序列，其中N是1或更大的整数。 相应的扇区雷达将第一和第二传输信号转换成第一和第二高频信号，并通过第一和第二发射天线发送第一和第二高频信号。 在各个扇区雷达中使用的2（N + 1）个第一正交码序列和2（N + 1）个第二正交码序列在2（N + 1）的M个倍数的传输周期上是正交的，其中M是整数 2或更大。
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10.发明申请SYSTEM AND METHOD OF ASSOCIATING DEVICES BASED ON ACTUATION OF INPUT DEVICES AND SIGNAL STRENGTH 有权基于输入设备的启动和信号强度的相关设备的系统和方法公开(公告)号：US20150017951A1
公开(公告)日：2015-01-15
申请号：US14504595
申请日：2014-10-02
发明人： Avneesh Agrawal , Chong Uk Lee , Kamran Moallemi , David Jonathan Julian , Manuel Eduardo Jaime , Robert Keith Douglas , Lu Xiao , Gregory Gordon Rose
CPC分类号： H04W76/14 , A61B5/0015 , A61B5/0404 , G01S13/0209 , G01S13/284 , G01S13/765 , H04B5/0031 , H04L63/0861 , H04L67/24 , H04W4/02 , H04W4/023 , H04W4/027 , H04W4/50 , H04W8/005 , H04W12/06
摘要： Various operations may be performed based on a distance-related function associated with two or more devices. For example, an association procedure for two or more devices may be based on one or more determined distances. Similarly, presence management may be based on one or more determined distances. A distance-related function may take various form including, for example, a distance between devices, two or more distances between devices, a rate of change in a relative distance between devices, relative acceleration between devices, or some combination of two or more of the these distance-related functions.
摘要翻译： 可以基于与两个或更多个设备相关联的距离相关功能来执行各种操作。 例如，两个或多个设备的关联过程可以基于一个或多个确定的距离。 类似地，存在管理可以基于一个或多个确定的距离。 距离相关功能可以采取各种形式，包括例如设备之间的距离，设备之间的两个或更多个距离，设备之间的相对距离的变化率，设备之间的相对加速度，或两个或更多个 这些距离相关的功能。
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