Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Commissariat a L'energie Atomique

Adrien Lelong

Marc Olivas

A distributed reflectometry device for diagnosing a network is disclosed. According to one aspect, the device includes at least one transmission line and several reflectometers connected to the network. A transmission portion of the device includes a first memory configured to store at least one test signal and a second memory configured to store weighting coefficients. The transmission portion may also include a first multiplier of a test signal (s) with a coefficient &#x3b2;, for producing a measurement m and a digital-to-analog converter connected to the line. A reception portion of the device includes an analog-to-digital converter configured to receive a signal from the line and provide a vector for the measurement m, a second multiplier of configured to multiply the vector with the coefficient &#x3b2;, an averaging module, and a post-processing and analysis module.

Distributed reflectometry device and method for diagnosing a transmission network

A multi-carrier reflectometry device and method for on-line diagnosis of at least one transmission line. The device includes: a transmission part that includes successively: a module for parameterizing a test signal S, such that:=[0,],a module for synthesizing the test signal by inverse discrete Fourier transform, and a digital to analog converter, connected to the line; and a detection part that includes successively: an analog to digital converter connected to this transmission line, a discrete Fourier transform module, and an analysis module containing a deconvolution module, which also receives the test signal s.

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Orsay, France

Adrien Lelong