Satellite Navigation Augmentation Techniques

The satellite navigation technology drives the navigation into a new epoch. But the technology cannot satisfy many applications, including accuracy, availability, integrity and continuity. To improve the system performance, a lot of methods were introduced to augment the basic satellite navigation systems. A serial of augmentation systems and technologies were discussed, and then their principles and capabilities analyzed. Augmentation systems supplement the original systems, and they will play the important role in the future.