The Effect of Carrier Phase on GPS Multipath Tracking Error

摘要: Multipath is one of the main sources tracking error in GPS receivers. This has previously been analyzed against relative delay Line Of Sight (LOS) and reflected signals. However, only carrier phase differences 0 π were used, since they give with maximum magnitude. paper shows that does not change linearly changing difference. Tracking plots difference LOS signals have used to analyze relationship between two various scenarios. While positive negative errors are found at π, a sharp increase around π. There zero crossing all but point dependent on amplitude, delay, The analysis also extended narrow correlators receiver. significantly reduced this case, however, similar characteristics observed when Moreover, was be less spacing reduced.