Unified Maximum Likelihood Form for Bias Constrained FIR Filters
Unified Maximum Likelihood Form for Bias Constrained FIR Filters
复制标题
偏置约束 FIR 滤波器的统一最大似然形式
DOI:
10.1109/lsp.2016.2627001
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发表时间:
2016-11
影响因子:
3.9
通讯作者:
Shmaliy Yuriy S
中科院分区:
文献类型:
--
作者:
Zhao Shunyi;Shmaliy Yuriy S
In this letter, the maximum likelihood (ML) finite-impulse response (FIR) filter is proposed for discrete time-variant state-space models with nonsingular system matrix. The ML FIR filter has the deadbeat property and its form is universal for all known bias constrained FIR filters. By the identity weighting matrix, the ML FIR filter becomes the unbiased FIR filter, which ignores the noise statistics and the initial error statistics. Otherwise, the ML FIR filter is equivalent to the optimal FIR filter with embedded unbiasedness and to the minimum variance unbiased FIR filter. An example of a stochastic resonator demonstrates higher immunity of the ML FIR filter against errors in the imprecisely defined noise statistics than in the Kalman filter.
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