Real-Time GPS Clock Monitoring with IGS Ultra-Rapid Products
The objective of this study is to develop a real-time strategy that results in higher precision than any real-time solutions currently available for GPS satellite clock monitoring. A real-time time transfer methodology was employed for satellite clock monitoring, composed of carrier phase smoothed code measurements and IGS ultra-rapid products to obtain precise satellite positions. The performance of the time transfer method was assessed by comparison with the results based on the all-in-view method using the broadcasting ephemeredes. The results showed that the stability of satellite clock monitoring for a short-term period was improved by the proposed method.
Riza Esa and Yanwen Wu
Y. J. Heo et al., "Real-Time GPS Clock Monitoring with IGS Ultra-Rapid Products", Advanced Materials Research, Vols. 301-303, pp. 1293-1298, 2011