Cycle slip detection, correction and phase leveling of RINEX formatted GPS observables

摘要

The implementation of an algorithm to detect and correct the cycle slips in global positioning system (GPS) observables formatted in receiver independent exchange (RINEX) is presented. The cycle slip corrected data has been subjected to phase leveling to determine the total electron content (TEC) for an un-differenced GPS receiver. The efficacy and accuracy of the developed computer codes has been tested for varied ionospheric conditions. It is important to note that this is the first attempt from a low latitude Indian zone for such an implementation.