GPS common-view with geodetic receivers

The time transfer precision of the GPS common-view method with single-channel C/A code receivers has become inadequate for an international time comparison network because of the advances made in atomic clock technology. NICT has been developing carrier-phase time transfer software with geodetic receivers to enable more precise time transfer technology. This paper describes the details of this software and the time transfer precision attainable with this software. Especially, we discuss the influence of tropospheric delay correction models.