Resilient PNT Concept Frame

doi:10.11947/j.AGCS.2018.20180149

Abstract

Abstract: The concept of resilient positioning, navigation and timing (PNT) is described.The definition of resilient PNT is given from the point of view of sensors integration, functional model and stochastic model.The relationship between the integrated (or comprehensive) PNT and resilient PNT is analyzed. It is pointed out that the integrated PNT is the foundation of the resilient PNT.The resilient PNT should be divided into the resilient sensors integration, resilient functional model and resilient stochastic model.The strategy and the principle of resilient integration of sensors are discussed.The resilient integration of sensors should be designed following the optimal, available and compatible as well as interoperable principles.The concepts of resilient functional model and the possible modification strategies of the resilient functional model are also described.Several possible optimal routes for resilient stochastic model improvements are also set forth.It is also pointed out that the optimal improvements of stochastic models for multi PNT sources should follow the same variance scale.At last, the resilient PNT data fusion for state parameters are given based on the resilient functional and stochastic models.

Key words: resilient positioning, navigation and timing, integrated PNT, micro PNT, resilient functional model, resilient stochastic model

CLC Number:

P227

YANG Yuanxi. Resilient PNT Concept Frame[J]. Acta Geodaetica et Cartographica Sinica, 2018, 47(7): 893-898.

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