Patent · US Active

Method for acquisition of GPS signals and GPS receiver with sample time error and frequency offset compensation

US7773034B2 · kind B2 · utility

8Cited by
3References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 27, 2006
Grant dateAug 10, 2010
Priority date—
Expiry dateJul 26, 2027

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03J1/0008
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Embodiments of a method for acquisition of GPS signals and a GPS receiver with sample time error and frequency offset compensation are generally described herein. Other embodiments may be described and claimed. In some embodiments, GPS signals are resampled at a plurality of sample rates for each of a plurality of predetermined frequency offsets to compensate for sample time error and frequency offset of a crystal oscillator. The resampled GPS signals may be cross correlated for each of the predetermined frequency offsets. In some embodiments, the sample time error and the frequency offset of the crystal oscillator may substantially exceed a time and frequency drift of reference clocks on GPS satellites.

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