CMOS architecture for SSTDR implementation

Conventional Reflectomet methods were used for detecting faults on bundles of wires. These bundles of wires may be part of any super system like aircrafts, space shuttle, automobiles or nuclear plants. Faults include open and short circuits, partially open and partially short, frays, solder joints, and other small anomalies. Among the various Reflectometry methods, Spread Spectrum Time Domain Reflectometry (SSTDR) is practically feasible for a CMOS solution. SSTDR is found to be non-interfering with digital signals. Here, we are proposing a CMOS architecture which implements the SSTDR algorithm. The proposed CMOS architecture consists of both analog and digital modules which can be developed into an integrated circuit which can automatically detect faults on wires with precisions on the order of a few inches.