An upper bound of mean-square error in state estimation with quantized measurements
An upper bound of mean-square error in state estimation with quantized measurements
复制标题
量化测量状态估计中均方误差的上限
DOI:
10.1177/0142331218765297
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发表时间:
2019
影响因子:
1.8
通讯作者:
Su Weizhou
中科院分区:
文献类型:
--
作者:
Hu Bin;Shen Zhiping;Su Weizhou
In this paper, we study the state estimation for a linear time-invariant (LTI) discrete-time system with quantized measurements. The quantization law under consideration has a time-varying data rate. To cope with nonlinearities in quantization laws and to analyse stability in the state estimation problem, a Kalman-filter-based sub-optimal state estimator is developed and an upper bound of its estimation error covariance is minimized. It turns out that, to guarantee the convergence of the upper bound, the averaged data rate of the quantization law must be greater than a minimum rate. This minimum data rate for the quantization law is presented in terms of the poles of the system and design parameters in the state estimator. Numerical examples are presented to illustrate the results in this work.
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影响因子:
6.4
作者:
Nilsson, J;Bernhardsson, B;Wittenmark, B
通讯作者:
Wittenmark, B
DOI:
10.1016/s0005-1098(03)00151-1
发表时间:
2003-09
期刊:
Autom.
影响因子:
--
作者:
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通讯作者:
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DOI:
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发表时间:
2011-04
期刊:
IEEE Trans. Autom. Control.
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影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
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