Patent · US Active

GPS receiver with fast acquisition time

US7551132B2 · kind B2 · utility

2Cited by
5References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 3, 2006
Grant dateJun 23, 2009
Priority date—
Expiry dateAug 24, 2026

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01S19/30
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Method for acquiring a plurality of GPS signals, in which the signals received from the space vehicles are correlated, in an array of parallel processing modules (20) with local replicas of a pseudorandom code. The local pseudorandom code generators are slewed periodically, on detection of an external periodical trigger INT_ACC, and the correlation data are dumped simultaneously to all processing modules in output registers for acquisition and tracking software. The integration period is shorter than the natural period of the pseudorandom code sequence, and all the local generators are slewed at the same time, thereby allowing a quicker acquisition of the SV C/A code.

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