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arXiv math/0703524math.OCmath.PR
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具有最优MTLL的非线性滤波

Nonlinear Filtering with Optimal MTLL

E. Fischler, Z. Schuss

摘要:

我们考虑从噪声测量一维扩散的非线性滤波问题。如果估计误差存在于规定的区域,则滤波器被称为失锁。在相位估计的情况下,该区域是相位测量函数的一个周期,例如,$[-π,π]$。我们表明,在小噪声的限制,最大限度地提高平均时间松锁的因果滤波器是贝尔曼的最小噪声能量滤波器。

英文摘要:

We consider the problem of nonlinear filtering of one-dimensional diffusions from noisy measurements. The filter is said to lose lock if the estimation error exits a prescribed region. In the case of phase estimation this region is one period of the phase measurement function, e.g., $[-π,π]$. We show that in the limit of small noise the causal filter that maximizes the mean time to loose lock is Bellman's minimum noise energy filter.

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