Parameter Estimation from Heterogeneous/Multimodal Data Sets

Inbar Fijalkow, Elad Heiman, Hagit Messer

Research output: Contribution to journalArticlepeer-review


Optimal parameter estimation requires simultaneous processing of all available measurements. The complexity of this task may become too large when measurements from two or more multimodal sensor networks are avaliable. In such cases, fusion of estimates obtained from each data set separately may be practical. In this paper, we derive the optimal linear combination of the possibly non-linear estimators, and propose sub-optimal weightings. We analyze the asymptotic performance gain of the first sub-optimal approach with respect to the individual optimal estimates. The theoretical results are supported by simulations.

Original languageEnglish
Article number7395307
Pages (from-to)390-393
Number of pages4
JournalIEEE Signal Processing Letters
Issue number3
StatePublished - Mar 2016
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 IEEE.


  • Estimation theory
  • Fisher information matrix
  • heterogeneous sensor networks
  • multimodal sensors


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