SYNCHRONIZATION USING MULTIPLE OFFSET GNSS RECEIVER CHANNELS

摘要

Systems and methods for synchronizing a global navigation satellite system (GNSS) receiver with a GNSS signal are provided. In one example, a GNSS receiver may include one or more sets of 20 GNSS channels that are each configured to integrate a received GNSS signal over a 20 millisecond accumulation window to output a navigation message bit. The accumulation windows of the 20 GNSS channels may be delayed relative to other windows of the 20 GNSS channels by 1 millisecond. The GNSS receiver may identify one of the 20 GNSS channels having the correct synchronization with the GNSS signal based on the navigation message bits output by the 20 GNSS channels. The identified GNSS channel having the correct synchronization with the GNSS signal may be used to determine a location of the GNSS receiver.

主权项

1. A global navigation satellite system (GNSS) receiver, the receiver comprising:
an antenna configured to receive a GNSS signal; a first plurality of GNSS channels coupled to receive the GNSS signal, wherein each of the first plurality of GNSS channels is configured to integrate the GNSS signal over an accumulation window having a predetermined length of time to output a navigation message bit, and wherein the accumulation windows of the first plurality of GNSS channels are delayed relative to each other; and a processor coupled to receive the navigation message bits from the first plurality of GNSS channels, wherein the processor is configured to identify one of the first plurality of GNSS channels that is synchronized with the GNSS signal based on the navigation message bits.