| http://www.w3.org/ns/prov#value | - The method of claim 2 wherein said digital filter operates according to the function: rnew (k)=rcurrent (k)+f???(v(k)-rcurrent (k)) where rnew (k) is the output from said digital filter, rcurrent (k) is the current value for a kth point in said estimate, f is a fraction, and v(k) is said sampled value. 4.
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