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| A METHOD FOR DUAL-FREQUENCY IONOSPHERIC TIME-DELAY CORRECTING USING A C/A CODE GPS RECEIVER |
| Zhang Mengyang; Lu Baowei; Song Wenmiao |
| Institute of Electronics Academia Sinica Beijing 100080 |
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Abstract Ionospheric time delay is one of the largest error sources in C/A code GPS navigation and positioning. In this paper, a method is proposed for real-time dual-frequency ionospheric time-delay correcting using a C/A code GPS receiver, and the principle of the circuit block diagram for this method is analyzed with its feasibility theoretically demonstrated.
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Received: 07 March 1997
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1998, Vol. 20 
