Patent ID: 8918295

Claim:
A distributed reflectometry device for diagnosing a transmission network, the transmission network comprising at least one transmission line and a plurality of reflectometers connected to the transmission network, comprising: for each reflectometer: a transmission portion comprising: a first memory configured to store a plurality of at test signals of N samples, each corresponding to a reflectometer; a second memory configured to store M weighting coefficients, β o . . . β m-1 corresponding to M measures, corresponding to M measures, enabling the reflectometer to be differentiated from the other reflectometers; a first multiplier of a test signal (s) issued from the first memory with a weighting coefficient β m issued from the second memory, for a measurement m comprised between 0 and M−1, the first multiplier providing a vector (x); a digital-to-analog converter connected to the transmission network, and a reception portion comprising: an analog-to-digital converter configured to receive a signal (y(t)) from the transmission network and to provide a vector ( ŷ (m) ) for a measurement m comprised between 0 and M−1, a second multiplier configured to multiply the vector ( ŷ (m) ) with a weighting coefficient issued from the second memory, an averaging module configured to enable cancelation of the contribution from the other reflectometers; and a post-processing and analysis module receiving an output of the averaging module so as to provide information about the transmission network's structure or about electrical faults present on the transmission network.