Abstract: A Method and System For Optimizing The Efficiency of SIGINT Collection Systems on Mobile Platforms with Limited Bandwidth Connections that is implementable in legacy signal collection systems. The resultant system first reduces potential upload bandwidth by eliminating whitespace in collected signals. Next, the system ignores collectable signals based on signals frequency or angle of arrival so as to identify energy of interest. Next, the system score and attributes a priority to each energy of interest, now known as signals of interest. The system then increases collection bandwidth on all signals of interest based on the score, priority and availability of resources. Finally, in real time, and based on SOI score and priority and the availability of downlink resources, the collected signal data is downlinked to the SIGINTcontrol center.

Abstract: A Technique for Efficient Message Delivery in Ad Hoc, Mesh, Wireless Computer Networks. The method and system of the present invention permits reliable wireless messaging between nodes on an ad hoc basis. The method is executed at each node in an iterative fashion, If a node is not the destination node for a particular message, that node will retransmit a received message. As the message is received and retransmitted from node to node, the message will propagate through the networked nodes until it reaches its destination node. In order to prevent the retransmission of messages into perpetuity, the method will limit the number of times that a particular node can retransmit a particular message. Once that retransmission limit is reached by a particular node for a particular message, the message retransmission will cease at that node, and the message will expire. The message will also expire after a pre-set time to live parameter has elapsed.

Abstract: This system and method provides a direction finding system that enables modern RF DF systems to analyze short duration signals in the entire instantaneous bandwidth. By providing a method to process wideband data, the invention drastically improves throughput and probability of intercept (POI). The invention is unique in that it does not require separate narrowband channels for analysis, and can simultaneously calculate azimuth and elevation estimates for every frequency in the bandwidth of an incident signal. It is also well-suited for fixed point, FPGA implementations making it a perfect match for modern state-of-the-art processing systems. The system and method capitalizes on the ability of Fourier Frequency Transform operations to accurately resolve incident wave phase at discrete frequencies. The system then uses the phase information from the individual elements in the array to arrive at an emitter azimuth angle.