-
公开(公告)号：US20230129419A1
公开(公告)日：2023-04-27
申请号：US17508399
申请日：2021-10-22
发明人： Manbok PARK
摘要： Disclosed are a method and an apparatus for improving positioning of vehicles based on infrastructure sensing information. The method for improving positioning of vehicles based on infrastructure sensing information may include steps of (a) receiving an absolute position of a peripheral vehicle located within a certain distance to a vehicle from an infrastructure device; (b) determining a first relative distance of the peripheral vehicle through an environmental sensor of the vehicle; and (c) performing positioning correction for the absolute position of the vehicle based on an absolute position of the peripheral vehicle and a first relative distance of the peripheral vehicle.
-
公开(公告)号：US11624843B2
公开(公告)日：2023-04-11
申请号：US16748517
申请日：2020-01-21
发明人： Paul Grgich , Matt Peddie
摘要： A method for reduced-outlier satellite positioning includes receiving a set of satellite positioning observations at a receiver; generating a first receiver position estimate; generating a set of posterior observation residual values from the set of satellite positioning observations and the first receiver position estimate; based on the set of posterior observation residual values, identifying a subset of the satellite positioning observations as statistical outliers; and after mitigating an effect of the statistical outliers, generating a second receiver position estimate having higher accuracy than the first receiver position estimate.
-
公开(公告)号：US20230017707A1
公开(公告)日：2023-01-19
申请号：US17377255
申请日：2021-07-15
发明人： Min WANG , Ning LUO , Gengsheng ZHANG , Kannan MUTHURAMAN
摘要： Described are methods, systems, and devices for correcting ionospheric error. In some aspects, a mobile device equipped with a Global Navigation Satellite System (GNSS) receiver is configured to determine a positioning measurement of a GNSS signal. The mobile device is further configured to receive augmentation data from an augmentation system. When augmentation data for a current measurement period is unavailable, the mobile device can obtain augmentation data associated with Total Electron Content (TEC) values (e.g., vertical TEC values) during one or more prior measurement periods. Based on the augmentation data associated with TEC values during one or more prior measurement periods and a pierce point of the received GNSS signal, an ionospheric error in the positioning measurement of the GNSS signal can be determined and corrected.
-
公开(公告)号：US11550065B2
公开(公告)日：2023-01-10
申请号：US17106772
申请日：2020-11-30
发明人： Min Wang , Gengsheng Zhang , Ning Luo , Yuxiang Peng
摘要： Disclosed are various techniques for wireless communication. In one aspect, a user equipment (UE) may receive, from a satellite vehicle (SV), a signal of a first frequency band, estimate a first ionospheric delay residual error based on the signal of the first frequency band, calculate a first pseudorange measurement and a first carrier phase measurement based on the first ionospheric delay residual error, and estimate a position using the first pseudorange measurement and the first carrier phase measurement. In some aspects, the ionospheric delay residual error is estimated via a Klobuchar equation. In some aspects, the position is estimated using ultra-long baseline real-time kinematics (RTK) positioning.
-
公开(公告)号：US11505223B2
公开(公告)日：2022-11-22
申请号：US16325813
申请日：2017-08-18
发明人： Hiroyuki Kobayashi , Hideaki Nameki , Naoto Seto , Yushi Kamo , Susu Jiang , Yohei Hattori
摘要： A train position detection apparatus is configured to detect a position of a train by receiving positioning radio waves from satellites through a reception antenna. The train position detection apparatus includes: a memory that stores therein in advance a railway design standard of a railway track on which the train travels; and one or more hardware processors that detect a position of the train by self-contained navigation based on an input signal from a self-contained navigation sensor. When a result of the train position detection based on the positioning radio waves does not satisfy the railway design standard, the one or more hardware processors correct the result of the train position detection based on the positioning radio waves with a result of the position detection by self-contained navigation.
-
公开(公告)号：US20220307860A1
公开(公告)日：2022-09-29
申请号：US17672734
申请日：2022-02-16
发明人： Yuki Okuma
摘要： A map creation device includes a processor, and the processor is configured to execute a program to acquire an image captured by a camera mounted in a vehicle, estimate a first position indicating a position of the vehicle and an error of the first position based on information indicating a traveling state of the vehicle, estimate a second position indicating the position of the vehicle and an error of the second position based on radio waves transmitted from artificial satellites, set position information of the vehicle preferentially using one position with a smaller error of the first position and the second position, and create a map of places in which the vehicle has traveled based on the set position information of the vehicle and the image.
-
公开(公告)号：US20220290991A1
公开(公告)日：2022-09-15
申请号：US17636119
申请日：2020-07-28
发明人： Martin LIEBNER , David PANNEN , Thomas SCHUTZMEIER
摘要： A device estimates an actual trajectory of a vehicle. The device is designed to determine a sequence of measured position values over a corresponding sequence of times by use of a position sensor. The device is further designed to determine a sequence of odometry values on the basis of sensor data from one or more vehicle sensors. The device is also designed to determine, as an estimation of the actual trajectory of the vehicle, a sequence of estimated pose values for the sequence of times and a systematic position offset for the sequence of measured position values so that an optimization criterion is improved, in particular is optimized at least locally.
-
公开(公告)号：US20220283319A1
公开(公告)日：2022-09-08
申请号：US17826349
申请日：2022-05-27
摘要： A method of navigating with a global navigation satellite system (GNSS) includes receiving a GNSS signal, calculating a GNSS navigation solution according to the GNSS identifying map information corresponding to the GNSS navigation solution, detecting features from the identified map information, and correcting a GNSS navigation based on the features detected from the map information and the GNSS signal.
-
公开(公告)号：US11414112B2
公开(公告)日：2022-08-16
申请号：US16770581
申请日：2019-06-13
申请人： THALES
发明人： Marc Revol
摘要： A method for determining the point location of a vehicle stopped on one storage track among a set of storage tracks, using virtual beacons is provided. It determines and compares the likelihood of a plurality of hypotheses as to the stopped location of the vehicle, corresponding to a first set of NBe predefined virtual beacons Be(i), i varying from 1 to NBe, the respective positions of which are known in an amount of one virtual beacon per storage track, by correlating the GNSS geo-positioning signals received at various synchronization reset times of a second set by the GNSS receiver located on board the vehicle with predicted GNSS geo-positioning signals of replicas expected for the various positions of the virtual beacons of the first set at the various times. The detected holding position of the vehicle is the position that corresponds to the maximum likelihood.
-
公开(公告)号：US11378699B2
公开(公告)日：2022-07-05
申请号：US17374523
申请日：2021-07-13
摘要： A system or method for generating GNSS corrections can include receiving satellite observations associated with a set of satellites at a reference station, determining atmospheric corrections valid within a geographical area; wherein geographical areas associated with different atmospheric corrections can be overlapping, and wherein the atmospheric corrections can be provided to a GNSS receiver when the locality of the GNSS receiver is within a transmission region of the geographical area.
-
-
-
-
-
-
-
-
-
搜索结果
726 条记录 (耗时 0.018 秒)