1997
DOI: 10.1109/9.618240
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Polynomial filtering of discrete-time stochastic linear systems with multiplicative state noise

Abstract: In this paper, the problem of finding an optimal polynomial state estimate for the class of stochastic linear models with a multiplicative state noise term is studied. For such models, a technique of state augmentation is used, leading to the definition of a general polynomial filter. The theory is developed for time-varying systems with nonstationary and non-Gaussian noises. Moreover, the steady-state polynomial filter for stationary systems is also studied. Numerical simulations show the high performances of… Show more

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Cited by 118 publications
(96 citation statements)
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“…With reference to the existing linear case, the assumptions postulated here are in common with the welldocumented EIV framework (So¨derstro¨m 2007). It is to be noted that the whiteness property of the input stated in Assumption A3 is also frequently imposed, especially when considering bilinear systems (Carravetta et al 1997;Favoreel, De Moor, and Overschee 1999;Tsoulkas, Koukoulas, and Kalouptsidis 1999;Verdult and Verhaegen 2000). Indeed, due to Assumption A3 and considering the case of diagonal bilinear systems, it is implied that E [y 0 k ] ¼ 0 (Pearson 1999).…”
Section: Problem Statement Notation and Assumptionsmentioning
confidence: 96%
See 1 more Smart Citation
“…With reference to the existing linear case, the assumptions postulated here are in common with the welldocumented EIV framework (So¨derstro¨m 2007). It is to be noted that the whiteness property of the input stated in Assumption A3 is also frequently imposed, especially when considering bilinear systems (Carravetta et al 1997;Favoreel, De Moor, and Overschee 1999;Tsoulkas, Koukoulas, and Kalouptsidis 1999;Verdult and Verhaegen 2000). Indeed, due to Assumption A3 and considering the case of diagonal bilinear systems, it is implied that E [y 0 k ] ¼ 0 (Pearson 1999).…”
Section: Problem Statement Notation and Assumptionsmentioning
confidence: 96%
“…When the inputs are random signals, as opposed to deterministic sequences, bilinear systems can be found in the literature under different names, such as: bilinear stochastic systems, e.g. Carravetta, Germani, and Raimondi (1997), or linear systems whose dynamic matrices comprise random processes, e.g. De Koning (1984).…”
Section: Introductionmentioning
confidence: 99%
“…its variance matrix (15), the innovation (10), the noise predictor (11) and its gain matrix (12) can follow from [22], so, their derivations are omitted here. The different equations from [22] are mainly derived as follows to read the whole paper conveniently.…”
Section: Appendix a The Proof Of Theoremmentioning
confidence: 99%
“…The systems with missing measurements, quantization effects and randomly occurring sensor saturations can be converted into the model with multiplicative noises [10,11]. Nonlinear polynomial filters are presented for systems with multiplicative noises [12]. However, it is not suitable for real-time applications since the algorithm has an expensive computational cost.…”
Section: Introductionmentioning
confidence: 99%
“…Unfortunately, the resulting Gaussian densities are not capable of representing arbitrary density functions that may appear in estimation problems of arbitrary nonlinear systems. Other density representations include Gaussian mixture densities [7], gridbased approaches [8], simple moments of probability density functions [9], exponential densities [3], fourier series [10], [11], the representation by means of sample sets [12], or Dirac mixture densities [13], which are capable of representing more general densities.…”
Section: Introductionmentioning
confidence: 99%