Out-of-sequence measurements fusion for asynchronous multisensor network

Authors:
Ge Quanbo;Wang Xun;Guan Binglei
Affiliations:
Institute of Information and Control, Hangzhou Dianzi Universiy, Hangzhou, China;Institute of Information and Control, Hangzhou Dianzi Universiy, Hangzhou, China;Ningbo University of Technology, Ningbo, China
Venue:
CCDC'09 Proceedings of the 21st annual international conference on Chinese control and decision conference
Year:
2009

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Abstract

Different sensors' sampling velocities and random transmission delay for wireless sensor networks often make the Out-Of-Sequence Measurements (OOSM) appearred. Most of the current OOSM algorithms are established for some special asynchronous systems, so they can't not only deal with the case that there have multiple OOSMs in the fusion period but also have bad universal ability. For mentioned problems above, the centralized fusion methods for this OOSM system is proposed based on equivalent measurements and orthogonal mapping technologies for a general OOSMs system with asynchronous sampling. The theoretic analysis and simulation examples both show that the proposed OOSM fusion algorithms not only deal with effectively arbitrary asynchronous OOSM system but also the fusion accuracy is better than the current OOSM method for special system.