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1.发明公开公开(公告)号：US20240280665A1
公开(公告)日：2024-08-22
申请号：US18694705
申请日：2023-10-13
CPC分类号： G01S7/292 , G01S7/32 , G01S7/411 , G01S13/282
摘要： A method comprising: obtaining I/Q data associated with a received radar signal; performing background subtraction on the I/Q data to obtain a subtracted signal; applying an algorithm to the subtracted signal to obtain a filtered signal, wherein the algorithm is based on a MSE filter; performing time-gating on the filtered signal to obtain a time-gated signal; applying a FFT to convert the time-gated signal to a frequency-domain signal; and applying a calibration set to the frequency-domain signal to extract an RCS of an OUT; and a system for conducting the method.
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公开(公告)号：US20240183941A1
公开(公告)日：2024-06-06
申请号：US18439191
申请日：2024-02-12
申请人： UHNDER, INC.
发明人： Monier Maher , Arunesh Roy , Murtaza Ali , Jean Pierre Bordes , Curtis Davis
IPC分类号： G01S7/35 , G01S7/02 , G01S7/28 , G01S7/32 , G01S7/40 , G01S13/34 , G01S13/36 , G01S13/42 , G01S13/58 , G01S13/87 , G01S13/931 , H01Q3/26
CPC分类号： G01S7/352 , G01S7/023 , G01S7/4004 , G01S13/34 , G01S13/584 , G01S13/588 , G01S13/931 , H01Q3/267 , G01S7/28 , G01S7/32 , G01S7/356 , G01S13/36 , G01S13/42 , G01S13/878 , G01S2013/93271 , G01S2013/93272
摘要： A multi-chip MIMO radar system includes a plurality of transmitters and a plurality of receivers. Each of the pluralities of transmitters and receivers are arranged across a plurality of circuit chips. The multi-chip MIMO radar system includes a central processor configured to receive data from the plurality of circuit chips. The plurality of circuit chips generates sets of selected range, Doppler, and virtual receiver data. The central processor is operable to process the sets of selected range, Doppler, and virtual receiver data to produce selected range detection and angular resolvability of targets.
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3.发明授权公开(公告)号：US11846699B2
公开(公告)日：2023-12-19
申请号：US16855002
申请日：2020-04-22
发明人： Jia-Chi Samuel Chieh , Everly Yeo , Max Kerber , Randall B. Olsen
CPC分类号： G01S13/4463 , G01S7/282 , G01S7/2925 , G01S7/32 , G01S13/426 , H01Q25/02
摘要： A need exists for a method to do monopulse tracking with a single beam phased array antenna. With a monopulse tracker antenna, the satellite, or moving target, will have a beacon signal that the tracker can acquire. The beacon signal may be a preamble in the transmitted signal from the satellite. The monopulse tracker antennas are scanned over the volume, minimizing the error signal. When the error signal is minimal, the antenna is pointed in the direction of the satellite or moving target. Because the tracker needs to know direction offsets in both azimuth and elevation planes, error signals from both planes are needed. The monopulse tracker antenna maintains a radio frequency link to the beacon signal, causing the antenna to lock in the direction of the satellite when the error signal is minimized to zero.
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公开(公告)号：US20180278265A1
公开(公告)日：2018-09-27
申请号：US15926960
申请日：2018-03-20
发明人： Keisuke TANAKA , Eikoh GOTOH
CPC分类号： H03M7/3062 , G01S7/292 , G01S7/32 , H03M5/02 , H03M7/3053
摘要： A signal processing device is provided, which includes a pulse compressing module configured to generate a pulse compressed signal obtained by performing pulse compression on a reception signal that is a reflection of a transmission signal transmitted to outside the device, a pseudo signal generating module configured to generate, based on the reception signal, a pseudo signal of which a pseudo main lobe portion corresponding to a main lobe of the pulse compressed signal has a lower signal level than signal levels of pseudo side lobe portions corresponding to side lobes of the pulse compressed signal, and a side lobe removing module configured to remove the pseudo signal from the pulse compressed signal.
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公开(公告)号：US20180259618A1
公开(公告)日：2018-09-13
申请号：US15977095
申请日：2018-05-11
申请人： FLIR Belgium BVBA
CPC分类号： G01S7/2922 , G01S7/023 , G01S7/288 , G01S7/32 , G01S7/52003 , G01S7/5273 , G01S13/10 , G01S13/26 , G01S13/28 , G01S15/101 , G01S15/104 , G01S15/89
摘要： Techniques are disclosed for detection and ranging systems and methods to improve range resolution, target separation, and reliability. A method includes selectively attenuating a signal representing a ranging system return or echo from targets so as to suppress side lobes or other undesirable artifacts appearing in the signal due to noise, interference, and/or distortion. A method may additionally or alternatively include rejecting interference events in ranging system returns by comparing a received return with that expected from a target illuminated by the ranging system, as determined by characteristics of its particular ranging sensor, and rejecting or attenuating returns or portions of returns that fail to match those characteristics in time or space. A system configured to perform such methods and comprising a transducer/antenna, a transceiver, a controller, and/or other logic devices implementing a pulse generator, correlator, selective attenuator, comparator, buffer, subtractor, and/or output circuit is also disclosed.
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6.发明申请公开(公告)号：US20170293018A1
公开(公告)日：2017-10-12
申请号：US15406113
申请日：2017-01-13
申请人： General Radar Corp.
发明人： Dmitry Turbiner
CPC分类号： G01S7/32 , G01S7/285 , G01S7/486 , G01S7/487 , G01S13/288 , G01S17/102
摘要： Aspects of the invention provide improvements to electromagnetic and other wave-based ranging systems, e.g., RADAR or LIDAR systems, of the type having transmit logic that transmits a pulse based on an applied analog signal. The improvements are characterized, in part, by a SERDES having a serializer (a/k/a a “transmit side”) that is coupled to the transmit logic. The serializer has (i) an input to which a pattern on which the pulse is based is applied and (ii) an output from which a serialization of the pattern is applied to the transmit logic. The improvements are further characterized in that the SERDES has deserializer logic (a/k/a a “receive side”) that is coupled to receive logic and that deserialize a received “analog” signal containing possible reflections of the pulse.
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7.发明授权Range side lobe removal device, signal-processing device, radar device provided with the signal-processing device, and method of removing range side lobe 有权范围旁瓣去除装置，信号处理装置，配备有信号处理装置的雷达装置，以及去除范围旁瓣的方法公开(公告)号：US08742979B2
公开(公告)日：2014-06-03
申请号：US13444724
申请日：2012-04-11
申请人： Yoshifumi Ohnishi
发明人： Yoshifumi Ohnishi
CPC分类号： G01S13/284 , G01S7/32 , G01S2007/2886
摘要： This disclosure provides a range side lobe removal device, which includes a pulse compressor for acquiring a reception signal from a radar antenna and generating a pulse-compressed signal by performing a pulse compression of the reception signal, a pseudorange side lobe generator for generating a pseudo signal of range side lobes of the pulse-compressed signal based on the reception signal, and a signal remover for removing a component corresponding to the pseudo signal from the pulse-compressed signal.
摘要翻译： 本公开提供了一种范围旁瓣去除装置，其包括用于从雷达天线获取接收信号并通过执行接收信号的脉冲压缩产生脉冲压缩信号的脉冲压缩器，用于产生伪随机旁瓣的伪距旁瓣发生器 基于接收信号的脉冲压缩信号的范围旁瓣的信号，以及用于从脉冲压缩信号中去除与伪信号对应的分量的信号去除器。
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公开(公告)号：US11774584B2
公开(公告)日：2023-10-03
申请号：US17231201
申请日：2021-04-15
发明人： Masaya Nose
IPC分类号： G01S13/937 , G01S7/04 , G01S7/32 , G01S13/89
CPC分类号： G01S13/937 , G01S7/04 , G01S7/32 , G01S13/89
摘要： An image generating device for a radar includes a receiving module configured to receive a radar signal from an antenna and process the radar signal to generate an echo, an edge image generator configured to generate an edge echo image based on the echo acquired at a first time instance, a projected image generator configured to generate a projected echo image based on the echo acquired at a second time instance, and a superimposition generator configured to superimpose the edge echo image on the projected echo image based on the first and second time instances, to generate a superimposed echo image.
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公开(公告)号：US09778557B2
公开(公告)日：2017-10-03
申请号：US14097281
申请日：2013-12-05
发明人： Yonina Eldar , Tatiana Chernyakova , Ron Amit
CPC分类号： G03B42/06 , A61B8/52 , G01S7/32 , G01S7/52025 , G10K11/343
摘要： A method includes receiving from multiple transducers respective signals including reflections of a transmitted signal from a target. An image of the target is produced irrespective of sparsity of the received signals, by computing transducer-specific frequency-domain coefficients for each of the received signals, deriving, from the transducer-specific frequency-domain coefficients, beamforming frequency-domain coefficients of a beamformed signal in which the reflections received from a selected direction relative to the transducers are emphasized, and reconstructing the image of the target at the selected direction based on the beamforming frequency-domain coefficients.
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公开(公告)号：US08022863B1
公开(公告)日：2011-09-20
申请号：US12613661
申请日：2009-11-06
申请人： Rao Nuthalapati
发明人： Rao Nuthalapati
IPC分类号： G01S7/28
CPC分类号： G01S7/32 , G01S13/282 , G01S13/582 , G01S2007/2883
摘要： A method includes correlating a plurality of samples of a waveform into a correlation domain to provide a mainlobe defined by a first subset of a plurality of pulse-compressed samples and a plurality of sidelobes defined by a second subset of the plurality of pulse-compressed samples. A weight is calculated for at least one of the pulse-compressed samples, and one of a plurality of SVA filter values is selected to apply to the at least one pulse-compressed sample based on the calculated weight of the at least one pulse-compressed sample. The SVA filter values include one, one minus a quotient of one-half divided by the calculated weight of the at least one sample, and a scale factor having a value greater than zero and less than or equal to one. The selected SVA filter values are applied to the at least one pulse-compressed sample.
摘要翻译： 一种方法包括将波形的多个样本相关联到相关域中以提供由多个脉冲压缩样本的第一子集定义的主瓣和由多个脉冲压缩样本的第二子集定义的多个旁瓣 。 对于至少一个脉冲压缩样本计算权重，并且基于所计算的至少一个脉冲压缩的样本的权重，选择多个SVA滤波器值中的一个以应用于至少一个脉冲压缩样本 样品。 SVA滤波器值包括一个减去一半的商除以至少一个样本的计算重量，以及具有大于零且小于或等于1的值的比例因子。 所选择的SVA滤波器值被应用于至少一个脉冲压缩样本。
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