The Boeing Company

Aleksandar Jovancevic

Reza Ghanadan

Bong Kyun Ryu

Jae H Kim

Orlie Thomas Brewer, Jr

Ely V Soto

Claudiu B Danilov

Orlie T Brewer

A method of signal processing includes receiving samples of a signal and processing the samples using a time-windowed transform function to generate spectral data corresponding to each time window. The method includes generating first spectrogram data based on magnitudes of the spectral data and generating second spectrogram data based on phase differences of the spectral data. The method further includes combining the first spectrogram data and the second spectrogram data to generate a combined spectrogram and processing the combined spectrogram to generate output.

Device to process sample using a time-windowed transform function to generate spectral data and to use combined magnitude and phase spectrograms

A system and methods for dynamic routing under extreme cognitive jamming environments are presented. Jammer signals emitted by a network protocol-aware cognitive jammer are scanned for at a router node in an ad-hoc wireless network, and jammer behaviors are detected based on signal characteristics of the jammer signals. A network dynamic pattern caused by the network protocol-aware cognitive jammer is classified based on the detected jammer behaviors observed over a period of time, and dynamic routing strategies of the first router node are adapted to achieve robust data delivery based on the network behavioral pattern. Data packets sent by the router node are routed to avoid nodes and routes that are affected by the jammer signals.

Dynamic routing under extreme cognitive jamming environments

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Clifton, VA, United States of America

Aleksandar Jovancevic