System for analysing faults by reflectometry of optimised dynamic range
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United States of America Patent
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Jul 26, 2022
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N/A
app pub date -
Oct 30, 2019
filing date -
Nov 9, 2018
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Abstract
A system for analyzing faults in a transmission line includes a test signal generator, a coupler for injecting the test signal into the transmission line and sampling the signal back-propagated in the transmission line, a control unit for generating a calibration signal equal to the opposite of the test signal and controlling its phase and its amplitude, at least one combiner for combining the calibration signal and the signal sampled by the coupler into a corrected signal, an amplifier for amplifying the corrected signal and a correlator for correlating the corrected signal and the test signal to produce a reflectogram, the control unit being further configured to make the amplitude and the phase of the calibration signal vary so as to eliminate, in the signal sampled by the coupler, at least one echo of the test signal on at least one point of impedance mismatch of the transmission line.
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