Precision evaluation of integrated GNSS receiver measurement
With the widespread application of integrated global navigation satellite system (GNSS) receivers,users are increasingly paying attention to the precision of their measurements. The outdoor GNSS signal was introduced indoors through a signal transponder,without the need for a power divider to perform zero baseline measurement on the integrated GNSS receiver,and the double differenced pseudo-range measurement and triple differenced carrier phase measurement of the GNSS receivers were statistically analyzed. Then,variance estimation was performed on the zero baseline measurement of three receivers,so as to obtain the precision of pseudo-range and carrier phase measurements by a single receiver. Repeatability experiments were conducted on the measurement precision of global positioning system (GPS) L1C/A,L2,BeiDou satellite navigation system (BDS) B1I,and B2I at four frequency points over the same time period of one hour for four types of GNSS receivers,and the measurement precision of four different types of GNSS receivers with large samples was statistically analyzed. The results indicate that the measurement precision of the receiver is consistent during the same 1-hour time period every day,and the precision of pseudo-range and carrier phase measurements varies among GNSS receivers from different manufacturers at different frequency points.
signal transponderprecision of pseudo-range measurementprecision of carrier phase measurement
万方数据
维普
