CONTROL OF COMPLEX INTEGRATED AUTOMATED SYSTEMS - SYSTEM RETRO-FIT WITH AGENT-BASED TECHNOLOGIES AND INDUSTRIAL CASE EXPERIENCES
2008
A signal received in an electronic article surveillance system is subjected to a nonlinear comb filtering function to remove interference. The nonlinear comb filtering is provided by performing a polyphase decomposition of an input digital signal, nonlinear filtering of the resulting subsequences, and then synthesizing the nonlinear-filtered subsequences. A median filter may be used as the subsequence filtering function. A linear comb filtering function may be provided downstream from the nonlinear comb filter to provide additional attenuation of interference.
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