A method for on line wire diagnosis using reflectometry is presented. It consists in detecting and locating electric faults in wiring networks while the target system is running. Since the system is diagnosed on line, it is necessary to minimize interferences between the target system and the reflectometer. The Modified SSTDR presented here allows a spectral modification of the injected signal in order to adapt it to the application constraints. The influence of this spectral deformation on the reflectometry results is discussed here.
展开▼
