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公开(公告)号：US20200232791A1
公开(公告)日：2020-07-23
申请号：US16318081
申请日：2016-09-05
发明人： Takehiro HOSHINO , Teruyuki HARA
IPC分类号： G01B15/08
摘要： A dielectric boundary surface estimation device includes: a pre-processing unit pre-processing wave data obtained by observing a dielectric by a radar device; a three-dimensional synthetic aperture processing unit performing three-dimensional synthetic aperture processing on the wave data pre-processed by the pre-processing unit; and a dielectric boundary surface estimating unit estimating a boundary surface between areas having different dielectric constants to each other using the wave data on which the three-dimensional synthetic aperture processing is performed by the three-dimensional synthetic aperture processing unit. The dielectric boundary surface estimating unit calculates a width and a thickness of the boundary surface.
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公开(公告)号：US20200348407A1
公开(公告)日：2020-11-05
申请号：US16934947
申请日：2020-07-21
发明人： Kazuaki MANIWA , Satoshi KAGEME , Teruyuki HARA
摘要： A radar device is configured in such a manner that each of transmission radars uses, as the amount of phase modulation, a value determined from either one of a positive integer value that is less than or equal to a result of division obtained by dividing the number of hits of a transmission RF signal by the number of the transmission radars and a value of 0; a hit number h of the transmission RF signal; and the number of hits.
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公开(公告)号：US20170299715A1
公开(公告)日：2017-10-19
申请号：US15512752
申请日：2014-10-30
发明人： Masayoshi TSUCHIDA , Kei SUWA , Teruyuki HARA
CPC分类号： G01S13/90 , G01S13/28 , G01S13/282
摘要： A signal processor 2 is configured so as to compensate for a peak shift of the distance between an SAR sensor 1 and a target, the peak shift occurring in the received signal subjected to range compression performed by an image reconstruction processing unit 14 due to a movement of the SAR sensor 1 during a time period until a reflected wave of a pulse signal is received by the SAR sensor 1 after the pulse signal is emitted from the SAR sensor 1. As a result, even when the SAR sensor 1 moves, an SAR image in which no azimuth ambiguity occurs can be reconstructed.
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公开(公告)号：US20200233075A1
公开(公告)日：2020-07-23
申请号：US16088195
申请日：2016-04-22
摘要： An observation area is divided into coarse resolution areas each being an area larger than a range cell, a coarse-resolution-area creating unit (12) is provided to calculate a Doppler velocity for each coarse resolution area on the basis of Doppler velocities in a plurality of range cells included in each coarse resolution area among Doppler velocities in range cells calculated by a Doppler velocity calculating unit (11), and a range cell detecting unit (13) detects a range cell in which an observation target is present from the Doppler velocity for each coarse resolution area calculated by the coarse-resolution-area creating unit (12) and the Doppler velocities for the range cells calculated by the Doppler velocity calculating unit (11).
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公开(公告)号：US20160189002A1
公开(公告)日：2016-06-30
申请号：US14903210
申请日：2014-07-16
发明人： Kaori KAWAKAMI , Kei SUWA , Takehiro HOSHINO , Teruyuki HARA
CPC分类号： G06K9/6211 , G01S7/41 , G01S13/89 , G06T7/001
摘要： A polygon pattern generating unit 6 to extract a plurality of luminance points from a dictionary image of each group to generate a dictionary polygon pattern whose vertices are the plurality of luminance points, and extract a plurality of luminance points from an observation image to generate a target polygon pattern whose vertices are the plurality of luminance points, and a pattern comparing unit 10 to perform a comparison of the dictionary polygon pattern of each group and the target polygon pattern are disposed, and a type determining unit 15 determines the type of an unknown target by using the result of the comparison of the patterns which is performed by the pattern comparing unit 10.
摘要翻译： 一种多边形图形生成单元6，用于从各组的字典图像中提取多个亮度点，以生成顶点为多个亮度点的字典多边形图案，并从观察图像中提取出多个亮点，生成目标 设置顶点为多个亮度点的多边形图案，以及进行各组的字典多边形图案与目标多边形图案的比较的图案比较单元10，类型确定单元15确定未知目标的类型 通过使用由图案比较单元10执行的图案的比较的结果。
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公开(公告)号：US20200011983A1
公开(公告)日：2020-01-09
申请号：US16489548
申请日：2017-03-31
发明人： Satoshi KAGEME , Teruyuki HARA , Masanori ITO
摘要： Transmission radars (1-nTX) (nTX=1, 2, . . . , NTX) generate mutually different modulation codes Code(nTX, h) by cyclically shifting the same code sequence by mutually different cyclic shift amounts Δτ(nTX), and generate mutually different transmission RF signals (4-nTX) using the mutually different modulation codes Code(nTX, h). As a result, the number of transmission radars 1-nTX can be made larger, and target detection accuracy can be made higher than in a case where orthogonal codes are used as mutually different modulation codes.
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公开(公告)号：US20190101635A1
公开(公告)日：2019-04-04
申请号：US16086439
申请日：2016-04-19
发明人： Fuyuki FUKUSHIMA , Teruyuki HARA , Satoshi KAGEME
摘要： Transmission antennas (2-#1 to 2-#M) transmit radiowaves of frequency bands uncorrelated with each other. Receivers (5-#1 to 5-#L) receives target-reflected waves reflected by a target. Pulse compressors (7-#1 to 7-#L) and transmission DBF units (8-#1 to 8-#L) suppress false peaks generated by the Doppler frequency in the target-reflected waves and combines the target-reflected waves. A reception DBF unit (9) and a target detector (10) detect the target based on the results of the combined signals.
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公开(公告)号：US20200379099A1
公开(公告)日：2020-12-03
申请号：US16998807
申请日：2020-08-20
发明人： Hiroshi SAKAMAKI , Teruyuki HARA
IPC分类号： G01S13/526 , G01S7/40
摘要： A signal cutting-out unit cuts out a signal reflected from a target by a specific length while the cut-out signals are overlapped by a set length. A power spectrum calculating unit calculates a plurality of power spectra from output signals from the signal cutting-out unit. A power spectrum reconstructing unit performs power spectrum reconstruction by changing a ratio or contribution rate of power spectrum components in a set region, using the plurality of power spectra. A spectral moment calculating unit calculates a spectral moment from a power spectrum reconstructed by the power spectrum reconstructing unit.
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公开(公告)号：US20200301003A1
公开(公告)日：2020-09-24
申请号：US16771605
申请日：2017-12-15
发明人： Tetsuro FURUTA , Hiroshi SAKAMAKI , Teruyuki HARA
IPC分类号： G01S13/60 , G01S13/42 , G01S13/931
摘要： A collision determining unit (404) determines whether a vehicle (1000) collides with an object (1001) when a Doppler velocity component between the vehicle (1000) and the object (1001) varies to a first reference value, or when the vehicle (1000) has traveled to a range R corresponding to the first reference value.
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公开(公告)号：US20200182994A1
公开(公告)日：2020-06-11
申请号：US16781234
申请日：2020-02-04
发明人： Satoshi KAGEME , Kazuaki MANIWA , Teruyuki HARA
摘要： A range-direction frequency domain converting unit (231-1) converts reception video signals into signals in a range direction frequency. A hit-direction frequency domain converting unit (232-1) converts the signals in the range direction frequency into signals based on the velocity and the range direction frequency so that the target Doppler frequency belongs to the same velocity bin number independently of variations in frequencies of transmission signals. A correlation unit (233-1) generates signals based on the velocity separated for each of the transmission frequencies and a range after correlation. An integration unit (234-1) generates band-synthesized signals based on the velocity and a range after correlation. A candidate target detecting unit (241) detects candidate targets based on the signal intensity from the output signals of the integration unit (233-1). A target relative velocity/relative range/arrival angle calculating unit (242) calculates the relative velocity, the relative range, and the arrival angle of the candidate targets.
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