Ðàäðèãåñ
06-16-2009, 12:39 PM
Similar to Y2k, the GPS week rollover problem is a counting and field length issue.
Problems related to the Week Number Rollover issue in receivers that have not properly interpreted the WN parameter are very hard to predict. Problems might range from a few seconds of position error to a complete failure of receiver operation. Published accounts of failure modes for “non-compliant” receivers have no common pattern of failure. One of the more common failure modes is a failure to acquire the satellites that are visible from a particular location at a given time.
Problems related to the Week Number Rollover issue in receivers that have not properly interpreted the WN parameter are very hard to predict. Problems might range from a few seconds of position error to a complete failure of receiver operation. Published accounts of failure modes for “non-compliant” receivers have no common pattern of failure. One of the more common failure modes is a failure to acquire the satellites that are visible from a particular location at a given time.