Patent ID: 8065100
Filing Date: 2011-11-22
Classification: H04B,H04M

Abstract:
1. A method of determining a plurality of present characteristics of a transmission line having an unknown number of cable segments (S1, . . . , SN) of unknown length and impedance, said method performing a loop topology identification by performing the steps of: using a processor, modelling and estimating characteristics of a first segment (S1) of the transmission line without a priori knowledge of cable topology of the first segment; using the processor, iteratively modelling and estimating characteristics of subsequent segments (S2, . . . , SN) based on the estimated characteristics of the first segment consecutively toward a termination end of the transmission line, wherein characteristics of each subsequent segment is modelled and estimated without a priori knowledge of cable topology of each of the subsequent segments; using the processor, transforming the estimated characteristics of the segments (S1, . . . , SN) to the time domain such that a loop topology identification is provided iteratively; and using the processor, providing information about the plurality of present characteristics for a total transmission line based on the loop topology identification.