Abstract: Identifying periodic jitter in a signal includes identifying transition regions of the signal, where the transition regions correspond to regions of the signal where the signal changes between different levels, determining lengths of the transition regions; and performing a statistical analysis that is based on the lengths of the transition regions in order to obtain a value indicative of a level of periodic jitter in the signal.

Abstract: Identifying periodic jitter in a signal includes identifying transition regions of the signal, where the transition regions correspond to regions of the signal where the signal changes between different levels, determining lengths of the transition regions; and performing a statistical analysis that is based on the lengths of the transition regions in order to obtain a value indicative of a level of periodic jitter in the signal.

Abstract: The invention is a control system for the emergency jettison of a cargo container extraction parachute from a cargo container within an aircraft, the aircraft having a plurality of cargo containers onboard that are ejectable in sequence. In detail, the system includes a load transfer coupling coupled to each extraction parachute for releasing the extraction chute from the cargo container upon receipt of electrical power. A first circuit is coupled to the load transfer coupling, the first circuit for providing the electrical power to the load transfer coupling of the next ejectable cargo container upon receiving an actuation signal to release the extraction parachute. A second circuit is used to sense when each of the plurality of cargo containers has been ejected from the aircraft and to provide the cargo container ejection signal to the first circuit upon the cargo container being ejected from the aircraft.