Method and apparatus for accurate aircraft and vehicle tracking
US7132982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2003 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Dec 23, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G5/727
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A direct multilateration target tracking system is provided with the TOA time stamp as an input. A technique of tracking targets with varying receiver combinations is provided. Methods of correlating and combining Mode A, Mode C, and Mode S messages to enhance target tracking in a passive surveillance system are provided. A direct multilateration target tracking system is provided by TOA tracking and smoothing. A technique for selecting best receiver combination and/or solution of multilateration equations from a multitude of combinations and/or solutions is provided. A technique for correcting pseudorange values with atmospheric conditions is provided. A technique for improving height determination for regions of poor VDOP in a 3D multilateration system is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.