GPS all in view time comparison using multi-receiver ensemble

we proposed a virtual GPS receiver model generated from a multi-receiver ensemble. The time difference between local reference and the realization GPS time (REFGPS) of the virtual receiver is the weighted REFGPS results of all calibrated receivers in ensemble. Depending on the numbers of receivers in ensemble, the measurements of the virtual GPS receiver in each epoch are got from different receivers and the quantity is several times than physical receivers. A long base line test showed the virtual receiver is more stable and robust and is potential to have better long term performance with respect to TWSTFT.