GPS World, October 31, 2014 By Paul D. Groves, Lei Wang, Debbie Walter, and Ziyi Jiang, University College London

The coming requirements of greater accuracy and reliability in a range of challenging environments for a multitude of mission-critical applications require a multisensor approach and an over-arching methodology that does not yet exist. Part 1 of this article, in the October issue, examined the two key concepts of complexity and context. In this continuation, we complete our overview with exploration of the requirements of ambiguity and environmental data.

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