公开(公告)号：US20240036167A1

公开(公告)日：2024-02-01

申请号：US18347428

申请日：2023-07-05

申请人： VIETTEL GROUP

发明人： Manh Thang Nguyen ,  Nhu Thanh Nguyen ,  Duy Khanh Do ,  Manh Tua Nguyen ,  Xuan Thanh Le

IPC分类号： G01S7/41 ,  G01S13/42 ,  G01S7/35 ,  G01S7/295

CPC分类号： G01S7/415 ,  G01S13/426 ,  G01S7/354 ,  G01S7/295

摘要： The invention proposes False targets caused by reflection position determining system and solution for the SSR which helps determine reflected real target's coordinate, reflector's coordinate and features, coordinate and features of the false target (multipath target) and using these data as the basis to build up the multipath target suppressing system, guaranteeing the detecting ability of the radar. The proposed system contains: Input data generating component; False target position (multipath position) determining component; Reflected signal power comparison calculating component; Displaying and data transferring component; Reflected multipath targets suppressing component. The proposed measure includes 5 steps: Step 1: generating input data for the multipath position determining system; step 2: determining the position of the target's ghost; step 3: comparing the signal power; step 4: displaying and false target information (position, power) transferring; step 5: applying multipath suppressing algorithm on the SSR.

公开(公告)号：US20230333238A1

公开(公告)日：2023-10-19

申请号：US18212653

申请日：2023-06-21

申请人： RTR Technologies, Inc

发明人： David Farrell ,  Thomas Pattison

IPC分类号： G01S13/76 ,  G01S7/295

CPC分类号： G01S13/762 ,  G01S7/295

摘要： The embodiments described herein provide ranging capabilities in RF-opaque environments, such as a jungle, utilizing transponders located on a property line. In particular, the embodiments described herein provide for determining a distance to a property line from a ranging device. The transponders are located on the property line and are separated from each other by a known distance. The ranging device transmits RF signals to the transponders, and receives RF signals returned by the transponders on a different frequency. The ranging device uses information about the transmitted and received RF signals and the known distance to calculate a distance from the ranging device to the property line.

公开(公告)号：US11777509B2

公开(公告)日：2023-10-03

申请号：US17871433

申请日：2022-07-22

申请人： TRON FUTURE TECH INC.

发明人： Yu-Jiu Wang ,  Bor-Ching Su

IPC分类号： H03L7/18 ,  H03K23/66 ,  H03L7/24 ,  H03L7/00 ,  H04L7/00 ,  H04W56/00 ,  H03K21/00 ,  G01S7/02 ,  G01S7/295 ,  G01S13/34 ,  H04B7/06

CPC分类号： H03L7/18 ,  H03K21/00 ,  H03K23/662 ,  H03K23/667 ,  H03L7/00 ,  H03L7/24 ,  H04L7/0008 ,  H04L7/0037 ,  H04W56/004 ,  G01S7/021 ,  G01S7/295 ,  G01S13/341 ,  H04B7/0617

摘要： A radar system includes: a plurality of first receiving devices for generating a plurality of first digital signals according to a plurality of first incoming signals, respectively; and a plurality of second receiving devices for generating a plurality of second digital signals according to a plurality of second incoming signals, respectively. A processing device is arranged to perform a first beamforming operation to generate a plurality of first beamforming signals according to the plurality of first digital signals and a first gain matrix, and to perform a second beamforming operation to generate a plurality of second beamforming signals according to the plurality of second digital signals and a second gain matrix; and to determine an altitude angle of a first object and a second object, and to determine a first azimuth angle of the first object and a second azimuth angle of the second object.

公开(公告)号：US11726212B2

公开(公告)日：2023-08-15

申请号：US16771299

申请日：2020-05-15

申请人： Baidu USA LLC ,  Baidu.com Times Technology (Beijing) Co., Ltd.

发明人： Xiang Liu ,  Shuang Zhang ,  Bin Gao ,  Dongchao Gao ,  Fan Zhu

IPC分类号： G01S17/931 ,  G01S7/48 ,  G01S17/42 ,  G06V20/56 ,  G01S7/295

CPC分类号： G01S17/931 ,  G01S7/4808 ,  G01S17/42 ,  G01S7/295 ,  G06V20/56

摘要： A method, apparatus, and system for determining whether all extrinsic matrices are accurate is disclosed. A plurality of post-LIDAR fusion point clouds that are based on simultaneous outputs from a plurality of LIDAR devices installed at one ADV are obtained. The obtained plurality of point clouds are filtered to obtain a first set of points comprising all points in the plurality of point clouds that fall within a region of interest. Each point in the first set of points corresponds to one coordinate value on the axis in the up-down direction. A distribution of the first plurality of coordinate values is obtained. A quantity of peaks in the distribution of the first plurality of coordinate values is determined. Whether all extrinsic matrices associated with the plurality of LIDAR devices are accurate is determined based on the quantity of peaks in the distribution of the first plurality of coordinate values.

公开(公告)号：US20230228846A1

公开(公告)日：2023-07-20

申请号：US18046594

申请日：2022-10-14

申请人： Robert Bosch GmbH

发明人： Benedikt Loesch ,  Arthur Hipke ,  Michael Schoor

IPC分类号： G01S7/40 ,  G01S7/03 ,  G01S13/42 ,  G01S7/295

CPC分类号： G01S7/403 ,  G01S7/03 ,  G01S13/42 ,  G01S7/295 ,  G01S2013/0254

摘要： A radar device. The radar device includes a transceiver apparatus that comprises at least three transmit antennas and at least three receive antennas or comprises at least two transmit antennas and at least two receive antennas having two-dimensional beam forming, wherein the transceiver apparatus is configured to emit radar radiation using the transmit antennas, to receive radar radiation using the receive antennas, and to generate radar data on the basis of the received radar radiation. The radar device further comprises an evaluation apparatus that is configured to establish whether radar radiation has propagated between the transceiver apparatus and the at least one target either directly or at least partly by way of at least one reflection by evaluating the radar data using a multitarget angle estimation model, wherein the multitarget angle estimation model takes the propagation of radar radiation along at least four paths into consideration.

公开(公告)号：US11698436B2

公开(公告)日：2023-07-11

申请号：US17084624

申请日：2020-10-29

申请人： The Research Foundation for The State University of New York

发明人： Adly T. Fam ,  Alexander Byrley

IPC分类号： G01S7/295 ,  G01S13/53

CPC分类号： G01S7/295 ,  G01S13/53

摘要： This disclosure introduces a mapping for creating good Doppler detection capable radar codes. The mapping transfers an existing digital radar code to the warped frequency domain by expressing the code elements as magnitudes and phases of selected frequencies. These frequencies are equispaced in the warped frequency domain to preserve the code's sidelobes after mapping. The frequency warping function may convert the multiplicative Doppler shift into an additive shift of the code pattern in the warped frequency domain, which allows Doppler shift detection.

公开(公告)号：US20230213613A1

公开(公告)日：2023-07-06

申请号：US18107862

申请日：2023-02-09

申请人： The Tomorrow Companies Inc.

发明人： James R. CARSWELL ,  Torry L. AKINS

IPC分类号： G01S7/295 ,  G06F3/00 ,  G01S7/288 ,  G01S7/02 ,  G01S7/282 ,  G06F13/42 ,  G06F1/12 ,  G01S7/285 ,  G01S13/02 ,  G01S7/35 ,  G01S13/22

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

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：US11683049B2

公开(公告)日：2023-06-20

申请号：US16793149

申请日：2020-02-18

申请人： Infineon Technologies AG

发明人： Andre Roger ,  Markus Bichl ,  Romain Ygnace

IPC分类号： H03M7/30 ,  G01S7/35 ,  G01S7/295

CPC分类号： H03M7/6005 ,  G01S7/295 ,  G01S7/352 ,  G01S7/356

摘要： A processor having a hardware decompressor configured to pad a non-equidistant data set, which is data received at irregular time intervals, with one or more of a predefined value, wherein the data is radar or optical sensor data; and a Fourier transform engine configured to receive the padded non-equidistant data set directly and continuously per data set from the hardware decompressor, and to FFT process the received padded non-equidistant data set.

公开(公告)号：US10009078B2

公开(公告)日：2018-06-26

申请号：US15549550

申请日：2016-02-09

申请人： NIPPON HOSO KYOKAI ,  NHK Engineering System, Inc.

发明人： Shingo Asakura ,  Madoka Honda ,  Kenichi Murayama ,  Takuya Shitomi ,  Susumu Saito ,  Yoshikazu Narikiyo ,  Hiroaki Miyasaka ,  Akihiko Satou ,  Tomoaki Takeuchi ,  Kenichi Tsuchida ,  Masahiro Okano ,  Masayuki Takada ,  Kazuhiko Shibuya

IPC分类号： H04L27/10 ,  H04B7/04 ,  H04L5/00 ,  H04B7/06

CPC分类号： H04B7/0469 ,  G01S7/295 ,  H04B7/0697 ,  H04L5/0016 ,  H04L5/023

摘要： Disclosed is a MIMO system including a transmitter and a receiver, in which an overall BER characteristic is improved. The transmitter (1) maps data, distributed among transmit antennas, onto an IQ plane to generate carrier symbols, and then, applies an inter-polarization interleave processing in a time direction to the carrier symbols between the transmit antennas, to generate OFDM signals. Receiving the OFDM signals, the receiver (2) demodulates the OFDM signals to generate complex baseband signals, and after that, applies a first deinterleave processing in a time direction to the complex baseband signals to generate time deinterleaved data. Further, the receiver (2) applies a MIMO separation processing to the time deinterleaved data to generate a plurality of sets of MIMO separated data and applies a second deinterleave processing between the receive antennas to the plurality of sets of MIMO separated data, so as to generate carrier symbols.

公开(公告)号：US20180143294A1

公开(公告)日：2018-05-24

申请号：US15726866

申请日：2017-10-06

申请人： Raytheon Company

发明人： John E. Duca ,  James L. Fulcomer ,  Jeffrey Bryan ,  Peter Hausman

IPC分类号： G01S7/295 ,  H01Q21/22

CPC分类号： G06F9/4818 ,  G01S7/295 ,  G01S7/38 ,  G01S2013/0245 ,  G06F9/5011 ,  G06F2209/5021 ,  H01Q21/22 ,  H04W52/28 ,  H04W72/10 ,  H04W72/1205

摘要： Systems and methods are presented for allocating resources. In particular, the systems and methods may receive and process a requested SP state to identify for first SP channel information regarding (i) signal processing resources required and (ii) state priority, based on a first state table defining for each of a plurality of states for the first SP channel information regarding signal processing resources required and state priority information; and based on the identified information, arbitrating as between a current state and a requested state. Systems and methods are also provided for fast blanking override of a requested signal processing (SP) state. In particular, the systems and methods may receive a blanking input and automatically override a requested SP state for a first SP channel based on using a first state table to determine blank susceptibility information for the requested SP state.