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公开(公告)号：US11249171B2
公开(公告)日：2022-02-15
申请号：US16442743
申请日：2019-06-17
Applicant: Aptiv Technologies Limited
Inventor： Honghui Yan , Stephanie Lessmann , Alexander Ioffe
IPC: G01S7/40 , G01S13/931 , B60T7/12 , B60W30/14
Abstract: A method of determining an alignment error of an antenna is described, wherein the antenna is installed at a vehicle and in cooperation with a detection device, and wherein the detection device is configured to determine a plurality of detections. Determining the plurality of detections comprises emitting a first portion of electromagnetic radiation through the antenna, receiving a second portion of electromagnetic radiation through the antenna, and evaluating the second portion of electromagnetic radiation in dependence of the first portion of electromagnetic radiation in order to localize areas of reflection of the first portion of electromagnetic radiation in the vicinity of the antenna. The method comprises determining a first detection and at least a second detection by using the detection device, and determining the alignment error by means of a joint evaluation of the first detection and the second detection.
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公开(公告)号：US10657393B2
公开(公告)日：2020-05-19
申请号：US16106510
申请日：2018-08-21
Applicant: APTIV TECHNOLOGIES LIMITED
Inventor： Maryam Foroughi , Uri Iurgel , Alexander Ioffe
IPC: G06K9/00 , G01S5/02 , G06N20/00 , G01S13/931
Abstract: A device for distinguishing between traversable and non-traversable objects. The device includes: an object-detection sensor unit configured generate data about a space around the sensor, a map generation unit configured to use the data to generate an occupancy grid map and a free space grid map for the space around the object-detection sensor unit. Each of the occupancy grid map and the free space grid map includes an array of cells. Each cell of the occupancy grid map contains an occupied space probability value representing the probability for the respective cell being occupied and each cell of the free grid map contains a free space probability value representing the probability for the respective cell being free. The device includes a classifier unit configured to classify at least one of the cells as containing a traversable or non-traversable object by calculating a difference of two free space probability values derived from the free space probability values of at least two of the cells adjacent to the at least one cell and by using the difference as well as the occupied space probability value of the at least one cell to classify the at least one cell.
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公开(公告)号：US20190317204A1
公开(公告)日：2019-10-17
申请号：US16366005
申请日：2019-03-27
Applicant: Aptiv Technologies Limited
Inventor： Tao Zhang , Honghui Yan , Wolfgang Doerr , Alexander Ioffe
Abstract: A method includes identifying, from a reflected radar signal, a plurality of single detections corresponding to object surface spots detected by the radar sensor system, wherein the positions of the single detections in a Range-Doppler-map are deter-mined, wherein at least a region of the Range-Doppler map is divided into a plurality of adjacent evaluation regions separated by separation lines, wherein the separation lines extend parallel to one of the range axis and the Doppler axis. For each evaluation region, at least one selected detection is determined which has, among the detections present in the respective evaluation region, an extremal value with respect to the other axis of the range axis and the Doppler axis, and a boundary of the at least one object is determined based on the selected detections.
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公开(公告)号：US20230236288A1
公开(公告)日：2023-07-27
申请号：US18156149
申请日：2023-01-18
Applicant: Aptiv Technologies Limited
Inventor： Dennis Vollbracht , Alexander Ioffe , James F. Searcy
IPC: G01S7/35 , G01S13/46 , G01S13/931
CPC classification number: G01S7/352 , G01S13/46 , G01S13/931 , G01S2013/468 , G01S13/584
Abstract: The present disclosure relates to apparatuses and methods for a radar device. For example, an antenna device has a first set of antennas to establish first propagation channels and a second set of antennas to establish second propagation channels. A signal processing device determines a first differential phase shift among first radar signals propagating via the first propagation channels and a second differential phase shift among second radar signals propagating via the second propagation channels. Antennas of the first set are located at positions that generate the first differential phase shift for a first multitude of target angles, and antennas of the second set are located at positions that generate the second differential phase shift for a second multitude of target angles. The processing device determines an angular position of a target object as a unique target angle that is part of the first and second multitude of target angles.
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公开(公告)号：US20230117339A1
公开(公告)日：2023-04-20
申请号：US17654037
申请日：2022-03-08
Applicant: Aptiv Technologies Limited
Inventor： Xiuzhang Cai , Bruno F. Camps Raga , Alexander Ioffe , Mohannad Saifo
IPC: G01S7/40 , G01S13/931 , G01S7/41 , G01S13/89
Abstract: This document describes techniques and systems for an adaptive ray-launcher for an electromagnetic response simulator. An adaptive ray-launching process is used to shoot electromagnetic rays at targets in a simulated environment. Uniformly distributed sparse electromagnetic rays are launched at the targets and the angular ray densities relative to the targets are calculated. Several propagation paths that include multipath effects are considered to determine the angular ray densities. Based on the length of the propagation paths of sparse electromagnetic rays with multipath related to each target, denser electromagnetic rays can be launched. The denser electromagnetic rays enable the fidelity related to targets in a far-range to be similar to the fidelity of closer targets. Additionally, any sparse electromagnetics that cannot be detected by a sensor can be disregarded. In this manner, an efficient and accurate electromagnetic response model may be approximated.
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Patent Agency Ranking
公开(公告)号：US20220326009A1
公开(公告)日：2022-10-13
申请号：US17658490
申请日：2022-04-08
Applicant: Aptiv Technologies Limited
Inventor： Honghui Yan , Alexander Ioffe , Jens Westerhoff
IPC: G01B15/02 , G01S13/931
Abstract: A method is disclosed, which is carried out by a detection device having a transmitter element for transmitting wave signals and two vertically aligned receiver elements for receiving wave signals, separated by a given spacing. The method includes transmitting, at the transmitter element, a wave signal that is reflected by the target. Each receiver element receives the wave signal reflected by the target, where the wave signal propagates via multiple paths caused by the reflecting surface. While a target distance varies, a phase difference between the reflected wave signals received by the two receiver elements is measured. From the phase difference measurements, a physical quantity fluctuation is determined in relation to the target distance. The information on the target height is then derived from the physical quantity fluctuation.
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公开(公告)号：US11177854B2
公开(公告)日：2021-11-16
申请号：US16912855
申请日：2020-06-26
Applicant: APTIV TECHNOLOGIES LIMITED
Inventor： Alexander Ioffe , Jairo Escudero Torres , Markus Stefer
Abstract: A method for simulating electromagnetic interactions between an antenna with a reflecting front face and at least one electromagnetic radiator and an electrically large interaction structure placed in front of the antenna comprises providing an antenna model representing the antenna, the antenna model comprising an antenna surface representing the front face and at least one field source representing the at least one radiator, wherein the field source is placed at the antenna surface and is configured as a far field source that is defined by a predetermined radiation pattern, and wherein direct electromagnetic interaction between the field source and the antenna surface is avoided. The method further comprises determining electromagnetic radiation launched by the field source based on the predetermined radiation pattern, propagating the radiation using an asymptotic numerical method, and determining interactions of the radiation with the interaction structure and with the antenna surface.
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8.发明申请公开(公告)号：US20200003868A1
公开(公告)日：2020-01-02
申请号：US16442743
申请日：2019-06-17
Applicant: Aptiv Technologies Limited
Inventor： Honghui Yan , Stephanie Lessmann , Alexander Ioffe
Abstract: A method of determining an alignment error of an antenna is described, wherein the antenna is installed at a vehicle and in cooperation with a detection device, and wherein the detection device is configured to determine a plurality of detections. Determining the plurality of detections comprises emitting a first portion of electromagnetic radiation through the antenna, receiving a second portion of electromagnetic radiation through the antenna, and evaluating the second portion of electromagnetic radiation in dependence of the first portion of electromagnetic radiation in order to localize areas of reflection of the first portion of electromagnetic radiation in the vicinity of the antenna. The method comprises determining a first detection and at least a second detection by using the detection device, and determining the alignment error by means of a joint evaluation of the first detection and the second detection.
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公开(公告)号：US20230384439A1
公开(公告)日：2023-11-30
申请号：US18450133
申请日：2023-08-15
Applicant: Aptiv Technologies Limited
Inventor： Dennis Vollbracht , Alexander Ioffe
IPC: G01S13/42 , G01S7/35 , G01S13/931
CPC classification number: G01S13/426 , G01S7/352 , G01S13/931
Abstract: A method for operating an angle resolving radar device for automotive applications comprises: routing at least a first and second antenna signal between a radar circuit and an antenna device, wherein the first and second antenna signals are routed via a common signal port of the radar circuit; transducing between the first antenna signal and a first radiation field, the first radiation field having a first phase center, and between the second antenna signal and a second radiation field, the second radiation field having a second phase center, wherein a location of the second phase center is shifted with respect to a location of the first phase center; constructing at least one angle resolving virtual antenna array using the location of the first phase center as a first antenna position and the location of the second phase center of the second radiation field as a second antenna position.
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公开(公告)号：US11774570B2
公开(公告)日：2023-10-03
申请号：US17153806
申请日：2021-01-20
Applicant: Aptiv Technologies Limited
Inventor： Dennis Vollbracht , Alexander Ioffe
IPC: G01S13/42 , G01S7/35 , G01S13/931
CPC classification number: G01S13/426 , G01S7/352 , G01S13/931
Abstract: A method for operating an angle resolving radar device for automotive applications comprises: routing at least a first and second antenna signal between a radar circuit and an antenna device, wherein the first and second antenna signals are routed via a common signal port of the radar circuit; transducing between the first antenna signal and a first radiation field, the first radiation field having a first phase center, and between the second antenna signal and a second radiation field, the second radiation field having a second phase center, wherein a location of the second phase center is shifted with respect to a location of the first phase center; constructing at least one angle resolving virtual antenna array using the location of the first phase center as a first antenna position and the location of the second phase center of the second radiation field as a second antenna position.
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