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US-12166563-B2 · Dec 10, 2024 · US
GNSS positioning using pressure sensors
US8949025B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8949025-B2 |
| Application number | US-59925808-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 4, 2008 |
| Priority date | Jun 8, 2007 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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Systems, methods and devices for improving the accuracy of GNSS data are provided. Specifically, embodiments of the invention can advantageously use sensor input to improve the accuracy of position fixes. The use of physical sensors in navigation systems is deemed particularly advantageous, especially where altitude data derived from the pressure sensor is calibrated with and/or blended with GNSS altitude data.
First claim
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The invention claimed is: 1. A navigation receiver comprising: a pressure sensor configured to provide a pressure sensor signal; a GNSS receiver configured to provide pseudoranges; a microprocessor configured to compute: (1) a GNSS altitude and a vertical pseudorange residue derived from the pseudoranges, (2) a barometric altitude derived from the pressure sensor signal, based on an atmospheric model, and (3) a double difference in altitude based on a difference between a GNSS…
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- What does patent US8949025B2 cover?
- Systems, methods and devices for improving the accuracy of GNSS data are provided. Specifically, embodiments of the invention can advantageously use sensor input to improve the accuracy of position fixes. The use of physical sensors in navigation systems is deemed particularly advantageous, especially where altitude data derived from the pressure sensor is calibrated with and/or blended with GN…
- Who is the assignee on this patent?
- Garin Lionel J, Qualcomm Inc
- What technology area does this patent fall under?
- Primary CPC classification G01S19/22. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).