Method and apparatus for managing and configuring tracker components for enhanced sensitivity tracking of GNSS signals

摘要

The present invention is related to location positioning systems, and more particularly, to a method and apparatus for making accuracy improvements to a GPS receiver's navigation calculations. According to a first aspect, the invention provides an extreme sensitivity GNSS tracking architecture. According to other aspects, the architecture includes multiple loops per channel, with the loops implemented with hardware and/or software. According to still further aspects, the architecture includes a multi-level lock detection algorithm designed to provide a trade-off between sensitivity and speed that is not possible with existing tracking architectures.

主权项

1. A GNSS tracker apparatus comprising:
a fast lock detection that calculates a plurality of fast lock detect values for a corresponding plurality of first signal levels; a slow lock detection that calculates a plurality of slow lock detect values for the corresponding plurality of second signal levels; and a threshold detector that compares the calculated fast and slow lock values to associated thresholds.