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公开(公告)号：EP4416528A1
公开(公告)日：2024-08-21
申请号：EP22783336.5
申请日：2022-09-20
发明人： KROPP, Victoria
CPC分类号： G01S19/396 , G01S19/20 , G01S19/14 , G01S19/48
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2.发明授权
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公开(公告)号：EP3701286B1
公开(公告)日：2024-03-27
申请号：EP18797058.7
申请日：2018-10-26
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公开(公告)号：EP3339903B1
公开(公告)日：2023-12-06
申请号：EP16206256.6
申请日：2016-12-22
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公开(公告)号：EP3374799B1
公开(公告)日：2023-10-18
申请号：EP16816573.6
申请日：2016-11-10
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公开(公告)号：EP3898368B1
公开(公告)日：2023-10-04
申请号：EP19816216.6
申请日：2019-11-25
发明人： SCHACK, Moritz , MERFELS, Christian
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7.发明公开
公开(公告)号：EP4227704A1
公开(公告)日：2023-08-16
申请号：EP23152957.9
申请日：2023-01-23
IPC分类号： G01S5/12 , G01S19/39 , G01S19/40 , G01S19/21 , G01S5/02 , G01S11/02 , G01S11/12 , G01S13/76 , G01S19/46 , G01S19/49
摘要： A system and method for enhanced aircraft-based targeting senses RF emissions or other signals associated with a target while navigating a trajectory through a GPS-challenged airspace. While the target is being observed, the aircraft targeting system tracks GPS-challenged state vectors (e.g., via an onboard inertial reference system) and pressure altitudes consistent with each observation. When the aircraft emerges from the GPS-challenged airspace, the targeting system determines multiple GPS-driven subsequent absolute positions of the aircraft. The targeting system determines a refined estimate of the target location via batch factor graph optimization of measurements taken while inside and outside of the GPS-challenged airspace.
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公开(公告)号：EP4206743A1
公开(公告)日：2023-07-05
申请号：EP22755529.9
申请日：2022-02-14
发明人： SU, Jinglan
摘要： Provided are a vehicle positioning method, an apparatus, a terminal device, a computer-readable storage medium, and a computer program product comprising instructions, applicable in the field of autonomous driving. The method comprises: acquiring a satellite filter parameter and data to be processed (101); determining a first parameter correction at a first moment (102); employing the first parameter correction to update the satellite filter parameter to produce positioning information at the first moment (103); acquiring a state of movement of a target vehicle at a second moment (104); if the state of movement at the second moment satisfies a positioning correction criterion, then acquiring a constraint matrix corresponding to the state of movement (105); determining a second parameter correction at the second moment on the basis of the constraint matrix (106); and employing the second parameter correction to update the positioning information at the first moment to produce positioning information at the second moment (107). The method utilizes a pseudorange observation value and a Doppler observation value to correct positioning information of a vehicle, with the pseudorange observation value and the Doppler observation value providing increased reliability, the accuracy of satellite positioning in a weak satellite signal scenario is enhanced, and a constraint is constructed on the basis of the state of movement of the vehicle, thus further increasing the accuracy of positioning.
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公开(公告)号：EP4184217A1
公开(公告)日：2023-05-24
申请号：EP21209233.2
申请日：2021-11-19
发明人： WENDEL, Jan
摘要： A method for detecting and excluding outliers in measurements of a global navigation satellite system (GNSS) receiver with respect to one or several GNSS satellite constellations comprises estimating an initial solution for a measurement of position, time and/or velocity of the GNSS receiver depending on n observations with regards to the satellite constellations; constructing a limited multidimensional grid of candidate solutions around the estimated initial solution uniformly distributed by a predetermined grid spacing in the space of the parameters to be estimated; calculating at each grid point an n-dimensional residual vector containing the residuals of each observation for the respective candidate solution, wherein each residual corresponds to a deviation of the respective observation from a predicted value; sorting the components of each residual vector according to magnitude; determining a minimum of a norm across the grid, the norm being defined at each grid point on basis of the respective residual magnitudes considering only the h = n ― k smallest residuals, wherein k depends on the expected number of outlier observations; selecting the candidate solution corresponding to the determined minimum of the norm as best solution for the measurement of position, time and/or velocity; and excluding outlier observations from the selected best solution on basis of their respective residual magnitudes.
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公开(公告)号：EP3339907B1
公开(公告)日：2023-05-24
申请号：EP16206172.5
申请日：2016-12-22
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