Distributed Blind Calibration in Lossy Sensor Networks via Output Synchronization

被引:23
作者
Stankovic, Milos S. [1 ]
Stankovic, Srdjan S. [1 ]
Johansson, Karl Henrik [2 ]
机构
[1] Univ Belgrade, Sch Elect Engn, Belgrade 11120, Serbia
[2] KTH Royal Inst Technol, Sch Elect Engn, ACCESS Linnaeus Ctr, SE-10044 Stockholm, Sweden
基金
瑞典研究理事会;
关键词
Calibration; consensus; convergence; distributed estimation; sensor networks; stochastic approximation; synchronization; WIRELESS SENSOR; CLOCK SYNCHRONIZATION; MULTIAGENT SYSTEMS; CONSENSUS;
D O I
10.1109/TAC.2015.2426272
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A novel distributed algorithm for blind macro-calibration of large sensor networks is introduced. The algorithm is in the form of a system of gradient-type recursions for estimating parameters of local sensor calibration functions. The method does not require any fusion center. The convergence analysis is based on diagonal dominance of the dynamical systems with blockmatrices. It is proved that the asymptotic consensus is achieved for all the equivalent sensor gains and offsets (in the mean square sense and with probability one) in lossy sensor networks with possible communication outages and additive communication noise. An illustrative simulation example is provided.
引用
收藏
页码:3257 / 3262
页数:6
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