CPC H04J 3/0667 (2013.01) [G04F 10/005 (2013.01); H04J 3/0641 (2013.01); H04J 3/0673 (2013.01); H04J 3/0697 (2013.01); H04L 7/033 (2013.01)] | 6 Claims |
1. A method for implementing a Rational Number Filter (RNF) reducing noise and jitter occurring in a measured phase of a timing referencing signal without any accumulation of quantization errors in an output phase produced by the RNF, by using rational numbers for expressing coefficients of the RNF and for processing the measured phases phase; wherein:
the measured phase is processed by using the RNE, in order to produce a set of rational numbers with a common denominator;
the rational numbers with the common denominator are added to produce a filtered phase comprising an integer part and a fractional part;
such fractional parts of the filtered phase are added to an accumulator until a content of the accumulator is equal to or greater than a quantization step;
when the content of the accumulator is equal to or greater than the quantization step, the quantization step is added to the integer part of the filtered phase to produce the output phase;
when the content of the accumulator is lesser than the quantization step, the integer part only of the filtered phase is used as the output phase.
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