Agency: Department of Defense | Branch: Army | Program: SBIR | Phase: Phase I | Award Amount: 116.36K | Year: 2005
The proposed effort will focus on the disruption of networks versus particular communications links using powerful optimization and co-design approaches. A technique for assigning target value metrics will be developed an applied to `best effort' extractions of adversary network topologies proposed in this work. Adversary network usage denial is conducted in conjunction with goals that reflect minimization of adverse impact to friendly and neutral communications and networks. By adjusting objective functions, we expect the core underlying algorithms and techniques to also apply to friendly communications planning as well as enemy jamming. All planning will account for location and jammer costs in terms of mobility and availability and resource contention.
OpCoast LLC | Entity website
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Agency: Department of Defense | Branch: Office for Chemical and Biological Defense | Program: SBIR | Phase: Phase I | Award Amount: 99.64K | Year: 2009
This effort proposes the development of "OrthopterNets" -- a novel approach applying mobile ad hoc network (MANET) communications networks for the transfer of intelligent information via insect calls (e.g., cricket calls). Insects will be equipped with embedded MEMS transceivers that pick up modulated calling sounds from nearby insects. Once the information in a call is extracted by the transceiver, the information code is applied to an electromechanical device on board the insect that modulates the insect calls, thereby retransmitting the information to another insect, and so on. The modulation mechanism, among other methods, affects the sound producing movements (stridulation) of an insect''s wings. Human or machine-based detectors would demodulate and extract the transmitted information. Work leverages existing MEMS technologies already deployed in insect species by the team and elsewhere. Phase I will focus on the applicability of certain insect species to OrthopterNets, applicable MEMS devices, and issues related to energy harvesting, environmental factors, development of an OrthopterNet networking protocol, and other tasks. Complementary technologies, such as the use of RF microtransmitters and receivers embedded in the insects will also be investigated.
Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase I | Award Amount: 69.56K | Year: 2004
The development and maintenance of large distributed software systems remains a difficult problem. We propose a targeted effort that will improve system management (such as version control / configuration management) while providing system analysis via task scheduling in a self-consistent manner. Although the approach is high-level in that it is targeted at the ability to handle thousands of software elements deployed onto hundreds of hardware platforms with a generalized inter-network connecting them, it will also be capable of incorporating realistic effects of process activation and communication overhead, resource contention, and other effects in large-scale systems design. The utility will be delivered in the form of net- and web-based tools using a multi-tier web service approach.
Zhou Y.,Texas A&M University |
Chiu C.-W.,Texas A&M University |
Sanchez C.J.,Texas A&M University |
Gonzalez J.M.,Texas A&M University |
And 5 more authors.
Journal of Bionic Engineering
Many insect families have evolved to produce and detect complex singing patterns for the purposes of mating, display of dominance, predator escape, and other needs. While the mechanisms of sound production by insects have been thoroughly studied, man-machine exploitation of such mechanisms has remained unreported. We therefore describe a method to modulate the frequency spectrum in the chirp call of a singing insect, Gampsocleis gratiosa (Orthoptera: Tettigoniidae), a large katydid indigenous to China and commonly known as Guo Guo or Chinese Bush Cricket. The chirp modulation was achieved through the contact of a ribbon of Ionic Polymer-Metal Composite (IPMC) against wing of the insect. The IPMC effectively served as an actuator when a small DC voltage was applied to the ribbon's faces. By applying a sequential on/off voltage waveform to the IPMC ribbon, the katydid's chirp was modulated in a corresponding manner. This configuration can be used as part of a broader application of using singing insects to harness their acoustic power to produce and propagate machine-induced messages into the acoustic environment. © 2013 Jilin University. Source