Comparison and Analysis of the Optimized AGC Setting and the Improved CNMC Method for the Ground Pseudolite Enhanced Beidou System

摘要

Beidou The pseudolites can be used as a backup signal source of the Beidou System on orbit while in the special geographical environment. It also provides foundation enhancement service for the Beidou system. When the ground-based satellite works on the ground, its observation is seriously affected by the multipath effect. At present, there are mainly signal methods and data pro¬cessing methods to deal with the multipath in pseudolites pseudo range observation values. In this paper, the optimized AGC settings in signal processing methods and the improved CNMC method in data processing are selected for comparison and analysis. The comparative analysis of the results shows that the improved CNMC method is slightly better than the AGC location algorithm after the pseudolite pseudo range observation.