[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5516/NET.2007.39.6.725

KERNEL-BASED NOISE FILTERING OF NEUTRON DETECTOR SIGNALS

Park, Moon-Ghu (Korea Electric Power Research Institute)
Shin, Ho-Cheol (Korea Electric Power Research Institute)
Lee, Eun-Ki (Korea Electric Power Research Institute)

Publication Information

Nuclear Engineering and Technology / v.39, no.6, 2007 , pp. 725-730 More about this Journal

Abstract

This paper describes recently developed techniques for effective filtering of neutron detector signal noise. In this paper, three kinds of noise filters are proposed and their performance is demonstrated for the estimation of reactivity. The tested filters are based on the unilateral kernel filter, unilateral kernel filter with adaptive bandwidth and bilateral filter to show their effectiveness in edge preservation. Filtering performance is compared with conventional low-pass and wavelet filters. The bilateral filter shows a remarkable improvement compared with unilateral kernel and wavelet filters. The effectiveness and simplicity of the unilateral kernel filter with adaptive bandwidth is also demonstrated by applying it to the reactivity measurement performed during reactor start-up physics tests.

Keywords

Kernel; Wavelet; Noise; Filter; Reactivity;

Citations & Related Records

Times Cited By Web Of Science : 0 (Related Records In Web of Science)

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