SYSTEMS AND METHODS FOR IMPLEMENTING S/SSTDR MEASUREMENTS

摘要

Systems and methods which utilize spread spectrum sensing on live circuits to obtain information regarding a circuit under test are provided. In some embodiments S/SSTDR testing may be utilized to obtain R, L, C and Z measurements from circuit components. In yet further embodiments, these measurements may be utilized to monitor the output of sensors on a circuit.

主权项

1. A method comprising:
transmitting a pseudo noise (PN) code onto a signal path of an electronic circuit; receiving plural first reflections of the PN code from a connection point at a first location along the signal path; receiving plural second reflections of the PN code from an impedance change at a second location along the signal path, wherein the second location is past the first location; processing the first reflections from the connection point and the second reflections from the impedance change to determine the second location and an impedance of the impedance change.