公开(公告)号：US20180356495A1

公开(公告)日：2018-12-13

申请号：US15778504

申请日：2016-11-21

申请人： Autoliv Development AB

发明人： JONATHAN MOSS ,  ANDREAS LEFEVRE

IPC分类号： G01S7/02 ,  G01S7/35 ,  G01S13/34 ,  G01S13/58 ,  G01S13/93

CPC分类号： G01S7/023 ,  G01S7/021 ,  G01S7/354 ,  G01S13/343 ,  G01S13/584 ,  G01S13/931 ,  G01S2007/356 ,  G01S2013/9375

摘要： A vehicle radar system (3) having at least one transceiver arrangement (7) arranged to generate, transmit and receive reflected radar signals. The transceiver arrangement (7) includes an ADC arrangement (10) that is arranged to output a digital IF signal (20) in a time domain to a DSP arrangement (12). A first DSP function (12a) is arranged to: identify and retain sample points of the digital IF signal (20) in a spectral domain with signal components that exceed a certain level threshold, such that an approximation signal (36) is formed in the time domain, identify possible sections (37) of the digital IF signal (20) in the time domain that exhibit interference exceeding an interference threshold, determine whether or not to replace such sections (37) with equivalent sections (38) of the approximation signal (36), and if applicable, replace such sections (37) with equivalent sections (38) of the approximation signal (36).

公开(公告)号：US20180321358A1

公开(公告)日：2018-11-08

申请号：US15939562

申请日：2018-03-29

申请人： Remote Sensing Solutions, Inc.

发明人： James R. Carswell ,  Torry L. Akins

IPC分类号： G01S7/295 ,  G01S7/288 ,  G01S7/282 ,  G06F1/12 ,  G06F13/42

CPC分类号： G01S7/295 ,  G01S7/02 ,  G01S7/282 ,  G01S7/285 ,  G01S7/288 ,  G01S13/225 ,  G01S2007/356 ,  G01S2013/0245 ,  G06F1/12 ,  G06F3/00 ,  G06F13/4221 ,  G06F2213/0026

摘要： The present disclosure relates to digital signal processing architectures, and more particularly to a modular object-oriented digital system architecture ideally suited for radar, sonar and other general purpose instrumentation which includes the ability to self-discover modular system components, self-build internal firmware and software based on the modular components, sequence signal timing across the modules and synchronize signal paths through multiple system modules.

公开(公告)号：US10078131B2

公开(公告)日：2018-09-18

申请号：US14855057

申请日：2015-09-15

申请人： Texas Instruments Incorporated

发明人： Sandeep Rao ,  Karthik Ramasubramanian

IPC分类号： G01S7/35 ,  G01S13/42 ,  G01S13/89 ,  G01S13/93 ,  G01S13/58

CPC分类号： G01S7/352 ,  G01S13/42 ,  G01S13/584 ,  G01S13/588 ,  G01S13/89 ,  G01S13/931 ,  G01S2007/356 ,  G01S2013/9332

摘要： The disclosure provides a radar apparatus. The radar apparatus includes a transmitter that transmits a first chirp. The first chirp is scattered by one or more obstacles to generate a first plurality of scattered signals. A plurality of receivers receives the first plurality of scattered signals. Each receiver of the plurality of receivers generates a digital signal in response to a scattered signal of the first plurality of scattered signals. A processor is coupled to the plurality of receivers and receives the digital signals from the plurality of receivers. The processor performs range FFT (fast fourier transform) and angle FFT on the digital signals received from the plurality of receivers to generate a first matrix of complex samples.

公开(公告)号：US20180149730A1

公开(公告)日：2018-05-31

申请号：US15361382

申请日：2016-11-26

申请人： Wenhua Li ,  Min Xu

发明人： Wenhua Li ,  Min Xu

IPC分类号： G01S7/02 ,  G01S13/02 ,  G01S13/93 ,  G01S17/93

CPC分类号： G01S7/023 ,  G01S13/343 ,  G01S13/42 ,  G01S13/865 ,  G01S13/867 ,  G01S13/931 ,  G01S17/102 ,  G01S17/936 ,  G01S2007/356 ,  G01S2013/9375

摘要： This invention is related to a cognitive Multi-Input Multi-Output (MIMO) radio frequency (or laser) radar with large-area synchronized multi-dimensional hopping spread spectrum and Interference-Free Windows (IFWs) for autonomous vehicles comprising of (1) analog component; (2) digital baseband component; (3) multi-dimensional hopping code generator; (4) large-area time synchronization; (5) cooperative IFW; and (6) cognitive engine. The new MIMO radar can provide interference-free environmental perception intelligently by the multi-dimensional IFWs formulated by beat-frequency hopping, beat-time hopping, discrete sequence (DS), cooperative IFW, array processing, and image denoising and fusion, etc. This invention increases the frequency efficiency greatly, and be applied to autonomous vehicles and robotics under sparse, dense, mixed autonomous and human driving, or completely autonomous driving environments.

公开(公告)号：US20180136328A1

公开(公告)日：2018-05-17

申请号：US15575257

申请日：2016-05-17

申请人： AUTOLIV DEVELOPMENT AB

发明人： JONATHAN MOSS

IPC分类号： G01S13/93 ,  G01S13/34 ,  G01S7/35

CPC分类号： G01S13/931 ,  G01S7/354 ,  G01S13/343 ,  G01S13/584 ,  G01S2007/356 ,  G01S2013/9375 ,  G01S2013/9389

摘要： A vehicle radar system having a signal generator (13) that generates a FMCW chirp signal (4) with a plurality of frequency ramps (r) running between a first frequency (fstart) and a second frequency (fstop). At the second frequency (fstop), the signal generator (13) is controlled to output an output signal (4) with an output frequency (Fout) for initializing a further frequency ramp (r′) using a frequency control signal (31) corresponding to a desired frequency (39) with an initial desired frequency part (39a) and at least one further desired frequency part (39b). The initial desired frequency part (39a) runs from the second frequency (fstop) to an intermediate frequency (fi) between the first and second frequency (fstart, fstop)), and the further desired frequency part (39b) runs from the intermediate frequency (fi) to the first frequency (fstart). The duration of the initial desired frequency part (39a) falls below the duration of the further desired frequency part (39b).

公开(公告)号：US20180095163A1

公开(公告)日：2018-04-05

申请号：US15284460

申请日：2016-10-03

申请人： John Lovberg ,  Vladimir Kolinko

发明人： John Lovberg ,  Vladimir Kolinko

IPC分类号： G01S7/02 ,  G01S13/93 ,  G01S7/35

CPC分类号： G01S7/023 ,  G01S13/325 ,  G01S13/66 ,  G01S13/931 ,  G01S2007/356

摘要： A phase modulated continuous wave radar system comprising a radar control system utilizing a Pseudo Random Bit Sequence (PRBS) as a long modulation code with simultaneous autocorrelation and cross-correlation interference resistance. the transmitter is co-sited with the receiver, the receiver can be given prior knowledge of the specific transmitted code that it is correlating to. This prior knowledge, which is not accessible in general to bi-static systems such as GPS and cell phone technology, allows for increased randomization of cyclic code structures in monostatic radar systems.

公开(公告)号：US09791564B1

公开(公告)日：2017-10-17

申请号：US15492160

申请日：2017-04-20

申请人： UHNDER, INC.

发明人： Fred Harris ,  David Trager ,  Curtis Davis ,  Raghunath K. Rao

IPC分类号： G01S13/93 ,  G01S13/34 ,  G01S13/00

CPC分类号： G01S13/931 ,  G01S7/023 ,  G01S13/325 ,  G01S13/34 ,  G01S13/36 ,  G01S13/93 ,  G01S2007/356 ,  G01S2013/9375 ,  G01S2013/9378

摘要： A radar sensing system for a vehicle includes a transmitter configured for installation and use on a vehicle and able to transmit radio signals. The radar sensing system also includes a receiver and a processor. The receiver is configured for installation and use on the vehicle and able to receive radio signals. The received radio signals include transmitted radio signals that are reflected from objects in the environment. The received radio signals further include radio signals transmitted by at least one other radar system. The processor samples the received radio signals to produce a sampled stream. The processor is configured to control an adaptive filter. Responsive to the processor, the adaptive filter is configured to filter the sampled stream, such that the radio signals transmitted by the at least one other radar system are removed from the received radio signals.

公开(公告)号：US09746546B2

公开(公告)日：2017-08-29

申请号：US14316933

申请日：2014-06-27

申请人： MANDO CORPORATION

发明人： Jae Eun Lee ,  Hae Seung Lim ,  Seong Hee Jeong

IPC分类号： G01S13/93 ,  G01S7/35 ,  G01S13/04 ,  G01S13/34 ,  G01S13/58 ,  G01S13/72

CPC分类号： G01S7/354 ,  G01S13/04 ,  G01S13/345 ,  G01S13/584 ,  G01S13/726 ,  G01S13/931 ,  G01S2007/356

摘要： Disclosed herein are a method and device for sensing a surrounding environment based on a frequency modulated continuous wave (FMCW) radar. The method for detecting a target based on an FMCW radar includes the steps of: the FMCW radar transmitting a sensing signal for detection of the target, and receiving a response signal in response to the sensing signal; the FMCW radar performing a signal processing on the response signal, and generating a frequency spectrum of a beat signal; the FMCW radar determining a detection frequency band for detection of the target within a valid frequency band of the frequency spectrum; the FMCW radar determining a threshold value to determine a target detection peak value for detection of the target among peak values of the frequency spectrum; and the FMCW radar detecting the target based on the detection frequency band and the threshold value.

公开(公告)号：US09739879B2

公开(公告)日：2017-08-22

申请号：US14394391

申请日：2013-03-16

申请人： S.M.S. Smart Microwave Sensors GMBH

发明人： Hermann Rohling

IPC分类号： G01S13/42 ,  G01S13/58 ,  G01S13/34 ,  G01S7/35

CPC分类号： G01S13/582 ,  G01S13/345 ,  G01S2007/356

摘要： The present invention relates to a method for determining distance (R) and radial velocity (v) of an object in relation to a measurement location, in which method radar signals are emitted and after reflection on the object are received again at the measurement location, wherein the emitted radar signals are subdivided within a measuring cycle into numerous segments (10) in which the frequency of the radar signals is gradually changed from an initial value (fA, fB) to the end value and each received reflected signal is subjected across one segment (10) to a first evaluation to detect frequency peaks and additionally a subsequent second evaluation of the signals for the frequency peaks of all segments (10) of the measuring cycle is carried out to determine a Doppler frequency component as a measure of the radial velocity (v). According to said method, an ambiguity in the determination of the relative velocity (v) is eliminated by subdividing the segments (10) into at least two groups (A, B), the initial value (fA, fB) of which and/or end value of the changing frequency are different, by subjecting the segments (11, 12) of each group (A, B) separately to the second evaluation and by determining a phase difference of the signals occurring during the second evaluation of the segments (11, 12) of each group (A, B) and corresponding to each other, thereby removing ambiguities in the determined velocity.

公开(公告)号：US20170205494A1

公开(公告)日：2017-07-20

申请号：US15326293

申请日：2015-07-15

申请人： DENSO CORPORATION

发明人： Koji Shimizu

IPC分类号： G01S7/35 ,  G01S13/34 ,  G01S7/41 ,  G01S13/93

CPC分类号： G01S7/354 ,  G01S7/2813 ,  G01S7/411 ,  G01S7/415 ,  G01S13/34 ,  G01S13/341 ,  G01S13/931 ,  G01S2007/356 ,  G08G1/163 ,  G08G1/166

摘要： The object detection apparatus is provided with a signal processing unit and an object detection unit. The signal processing unit performs a frequency analysis of a beat signal obtained by transmitting and receiving continuous waves and estimates an incoming direction of reception waves, the object detection unit executes, based on a processing result of the signal processing unit, at least an extracting process of an object candidate, a tracking process for an object and the object candidate, and an object recognition process that recognizes the object candidate to be the object.The object detection unit is characterized in that the unit executes, individually for each type of object to be detected, the extracting process, the tracking process and the object recognition process, and changes content of processes depending on a feature of the object to be detected.