公开(公告)号：US10514258B2

公开(公告)日：2019-12-24

申请号：US15692142

申请日：2017-08-31

Applicant: NextNav, LLC

Inventor： Michael Dormody ,  Ganesh Pattabiraman ,  Abijith Kumar ,  Thomas Wolf ,  Gary Parsons ,  Christian Gates ,  Deepak Joseph ,  Badrinath Nagarajan

IPC: G01C17/38 ,  G01C21/10 ,  G01C25/00 ,  G01C5/06 ,  G01C21/16 ,  G01S5/02 ,  G01S19/14 ,  G01S19/40

Abstract: Calibrating an unstable sensor of a mobile device. Systems and methods for calibrating a sensor of a mobile device determine a first estimated position of the mobile device without using any measurement from the sensor of the mobile device, generate a second estimated position of the mobile device using a measurement from the sensor, estimate a sensor error of the sensor using the first estimated position and the second estimated position, and use the sensor error to determine a calibration value for adjusting one or more measurements from the sensor.

公开(公告)号：US11892295B2

公开(公告)日：2024-02-06

申请号：US17644029

申请日：2021-12-13

Applicant: NextNav, LLC

Inventor： Michael Dormody ,  Ganesh Pattabiraman ,  Abijith Kumar ,  Thomas Wolf ,  Gary Parsons ,  Christian Gates ,  Deepak Joseph ,  Badrinath Nagarajan

IPC: G01C17/38 ,  G01C25/00 ,  G01C5/06 ,  G01C21/16 ,  G01S19/14 ,  G01C21/10 ,  G01S5/02 ,  G01S19/40 ,  G01S5/00

CPC classification number: G01C17/38 ,  G01C5/06 ,  G01C21/10 ,  G01C21/165 ,  G01C25/00 ,  G01C25/005 ,  G01S19/14 ,  G01S5/012 ,  G01S5/017 ,  G01S5/02 ,  G01S19/40

Abstract: Calibrating an unstable sensor of a mobile device. Systems and methods for calibrating a sensor of a mobile device determine a first estimated position of the mobile device without using any measurement from the sensor of the mobile device, generate a second estimated position of the mobile device using a measurement from the sensor, estimate a sensor error of the sensor using the first estimated position and the second estimated position, and use the sensor error to determine a calibration value for adjusting one or more measurements from the sensor.

公开(公告)号：US11199406B2

公开(公告)日：2021-12-14

申请号：US16684859

申请日：2019-11-15

Applicant: NextNav, LLC

Inventor： Michael Dormody ,  Ganesh Pattabiraman ,  Abijith Kumar ,  Thomas Wolf ,  Gary Parsons ,  Christian Gates ,  Deepak Joseph ,  Badrinath Nagarajan

IPC: G01C17/38 ,  G01C25/00 ,  G01C5/06 ,  G01S5/02 ,  G01C21/16 ,  G01S19/14 ,  G01C21/10 ,  G01S19/40

Abstract: Calibrating an unstable sensor of a mobile device. Systems and methods for calibrating a sensor of a mobile device determine a first estimated position of the mobile device without using any measurement from the sensor of the mobile device, generate a second estimated position of the mobile device using a measurement from the sensor, estimate a sensor error of the sensor using the first estimated position and the second estimated position, and use the sensor error to determine a calibration value for adjusting one or more measurements from the sensor.

公开(公告)号：US12228402B2

公开(公告)日：2025-02-18

申请号：US18539991

申请日：2023-12-14

Applicant: NextNav, LLC

Inventor： Michael Dormody ,  Ganesh Pattabiraman ,  Abijith Kumar ,  Thomas Wolf ,  Gary Parsons ,  Christian Gates ,  Deepak Joseph ,  Badrinath Nagarajan

IPC: G01C17/38 ,  G01C5/06 ,  G01C21/10 ,  G01C21/16 ,  G01C25/00 ,  G01S5/00 ,  G01S5/02 ,  G01S19/14 ,  G01S19/40

Abstract: Calibrating an unstable sensor of a mobile device. Systems and methods for calibrating a sensor of a mobile device determine a first estimated position of the mobile device without using any measurement from the sensor of the mobile device, generate a second estimated position of the mobile device using a measurement from the sensor, estimate a sensor error of the sensor using the first estimated position and the second estimated position, and use the sensor error to determine a calibration value for adjusting one or more measurements from the sensor.