Patent · US Expired

Synthetic phase processor for controlling accuracy of high integrity GPS positions

US7336225B1 · kind B1 · utility

6Cited by
6References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 23, 2006
Grant dateFeb 26, 2008
Priority date—
Expiry dateMay 23, 2026

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01S19/44
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A positioning system or synthetic phase processor or rover station for providing high integrity positions with graduated accuracies. The positioning system includes one or more real time kinematic (RTK) reference stations for receiving GPS signals at established reference positions and measuring reference phases. The positioning system or the rover station selects a synthetic offset vector and uses the synthetic offset vector for inferring synthetic reference phases to a synthetic position. The rover station uses the synthetic reference phases with actual or virtual reference positions for determining a rover position having an added positional error controlled by the synthetic offset vector. For another embodiment a secure rover station dithers a secure position with a synthetic offset vector for providing an unsecure rover position having the added positional error.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.