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A Numerical-Integration Perspective on Gaussian Filters

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4 Author(s)
Yuanxin Wu ; Dept. of Autom. Control, Nat. Univ. of Defense Technol., Changsha ; Dewen Hu ; Meiping Wu ; Xiaoping Hu

This paper proposes a numerical-integration perspective on the Gaussian filters. A Gaussian filter is approximation of the Bayesian inference with the Gaussian posterior probability density assumption being valid. There exists a variation of Gaussian filters in the literature that derived themselves from very different backgrounds. From the numerical-integration viewpoint, various versions of Gaussian filters are only distinctive from each other in their specific treatments of approximating the multiple statistical integrations. A common base is provided for the first time to analyze and compare Gaussian filters with respect to accuracy, efficiency and stability factor. This study is expected to facilitate the selection of appropriate Gaussian filters in practice and to help design more efficient filters by employing better numerical integration methods

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Signal Processing, IEEE Transactions on  (Volume:54 ,  Issue: 8 )