| CPC H04B 3/46 (2013.01) [G08B 21/182 (2013.01)] | 20 Claims |

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1. A method, comprising:
obtaining an incident signal at a first port of a communication system, the incident signal including a measurement based on live traffic;
obtaining a reflected signal at a second port of the communication system;
performing a first processing in view of the incident signal and the reflected signal; and
performing a second processing comprising:
determining a delay between the incident signal and the reflected signal; and
determining one or more coefficients based on at least one of: the incident signal, the reflected signal or the delay.
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