Method and system using GNSS phase measurements for relative positioning
US8271194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2009 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Jun 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for locating GNSS-defined points, distances, directional attitudes and closed geometric shapes includes the steps of providing a base with a base GNSS antenna and providing a rover with a rover GNSS antenna and receiver. The receiver is connected to the rover GNSS antenna and is connected to the base GNSS antenna by an RF cable. The receiver thereby simultaneously processes signals received at the antennas. The method includes determining a vector directional arrow from the differential positions of the antennas and calculating a distance between the antennas, which can be sequentially chained together for determining a cumulative distance in a “digital tape measure” mode of operation. A localized RTK surveying method uses the rover antenna for determining relative or absolute point locations. A system includes a base with an antenna, a rover with an antenna and a receiver, with the receiver being connected to the antennas. A processor is provided for computing positions, directional vectors, areas and other related tasks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.