System and method for high precision cable length measurement in communication system

摘要

The embodiments described herein provide a system for cable length measurement in a communication system. The system includes a transmitter, a receiver, a signal sampler, and a cable length calculation unit. The transmitter is configured to transmit the plurality of data symbols at the first data rate via the wired data communication link. The receiver is configured to receive the reflected signal. The signal sampler samples the received reflected signal using the phase shift number of the shifted sampling phase to generate the reflected sample, combines the reflected samples having different sampling phases, and is higher than the first data rate It is configured to generate a series of reflection samples corresponding to two data rates. The cable length calculation unit is configured to determine delay parameters from the series of reflected samples and to generate an estimate of the data communication link length.