Invention Grant
- Patent Title: Latency compensation in inertial navigation system
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Application No.: US16649559Application Date: 2020-03-05
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Publication No.: US11609342B2Publication Date: 2023-03-21
- Inventor: Yan Cui , Quanwei Liu , Yao Zhuo
- Applicant: Baidu USA LLC , Baidu.com Times Technology (Beijing) Co., Ltd.
- Applicant Address: US CA Sunnyvale; CN Beijing
- Assignee: Baidu USA LLC,Baidu.com Times Technology (Beijing) Co., Ltd.
- Current Assignee: Baidu USA LLC,Baidu.com Times Technology (Beijing) Co., Ltd.
- Current Assignee Address: US CA Sunnyvale; CN Beijing
- Agency: Womble Bond Dickinson (US) LLP
- International Application: PCT/CN2020/077982 WO 20200305
- International Announcement: WO2021/174485 WO 20210910
- Main IPC: G01S19/40
- IPC: G01S19/40 ; G01S19/49 ; G01C21/16

Abstract:
In one embodiment, a method for calculating a location of an autonomous driving vehicle includes receiving new global navigation satellite system (GNSS) data. The method further includes identifying a first previously estimated location from a plurality of previously estimated locations with a timestamp that is closest to the timestamp of the new GNSS data and identifying a second previously estimated location from the plurality of previously estimated locations with a most recent timestamp. The method further includes calculating a difference between the first previously estimated location and the second previously estimated location, adjusting the new GNSS data based on the difference; and calculating a current estimated location of the ADV based on the adjusted GNSS data.
Public/Granted literature
- US20220299656A1 LATENCY COMPENSATION IN INERTIAL NAVIGATION SYSTEM Public/Granted day:2022-09-22
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