Invention Grant
US07656349B2 Enhancement of GNSS position determination in poor signal propagation environments
有权
在不良信号传播环境中增强GNSS位置确定
- Patent Title: Enhancement of GNSS position determination in poor signal propagation environments
- Patent Title (中): 在不良信号传播环境中增强GNSS位置确定
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Application No.: US11694368Application Date: 2007-03-30
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Publication No.: US07656349B2Publication Date: 2010-02-02
- Inventor: Walter J. Feller
- Applicant: Walter J. Feller
- Applicant Address: CA Calgary, Alberta
- Assignee: NovAtel Inc.
- Current Assignee: NovAtel Inc.
- Current Assignee Address: CA Calgary, Alberta
- Agency: Cesari and McKenna, LLP
- Agent Patricia A. Sheehan
- Main IPC: G01S1/02
- IPC: G01S1/02 ; G01S5/14
Abstract:
A system, for enhancing location estimates by movable rovers that use receivers for processing ranging signals from orbiting satellites, including a fixed base station that serves as a ranging signal source for the rovers' receivers. The base station may also determine and transmit the azimuthal angles of the respective rovers. The rovers use this information, along with a calculated or transmitted ranges to the base station to calculate the ranging system times at the locations of the rovers. Further, the rovers may use the information along with signals from satellites in view to determine position.
Public/Granted literature
- US20070241960A1 ENHANCEMENT OF GNSS POSITION DETERMINATION IN POOR SIGNAL PROPAGATION ENVIRONMENTS Public/Granted day:2007-10-18
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