This paper describes the development and application of a rapid prototyping system for flight testing of novel autonomous flight algorithms for unmanned air vehicles (UAVs) at the Naval Postgraduate School. The system provides a small team with the ability to rapidly prototype new theoretical concepts and flight-test their performance in realistic mission scenarios. The original development was done using MATRIXX Xmath/SystemBuild environment almost a decade ago. Currently, the system has been converted to the Mathworks MATLAB/Simulink development environment. This paper describes the hardware and software tools developed for the system and briefly discusses the variety of projects including vision-based target tracking, 3D path following, SUAV control over the network and high-resolution imagery on the fly.
This paper introduces the novel concept of using a GSM network for command of and communications with multiple aerial delivery systems. The research prototype of such a system, Snowflake-N, allows communicating with other network clients via a commercial Blackberry Curve 8310 handheld over a Bluetooth connection. A new architecture allows reassigning targets and sending other relevant commands (via web interface, by voice, data, or text messages) to an onboard autopilot, which is within a network reach, from any place in the world. Similarly, a current position of the descending system and target assignment can be viewed from any computer connected to the Internet worldwide using a standard Google Earth viewer. The networking capability also allows uplinking the latest weather data measured by a portable target weather station, being a part of a network as well, and therefore drastically improving an accuracy of a payload delivery. The paper extends the previous work by the authors and introduces the current state of the Snowflake-N development. It presents a C 2 concept for the aerial delivery systems, talks about communication protocols, presents the hardware set-up, components and results of recent drops. The paper ends with conclusions and recommendations for further development.
This paper discusses the current status of the development of the mobile aerial delivery system to be further employed in a variety of different applications. High accuracy of the developed system enables its use in precision troop resupply, precise sensors placement, urban warfare reconnaissance and other similar operations. This paper overviews the overall system architecture and components of the developed aero delivery system itself and then proceeds with describing the current status of integrating it with an advanced deployment platform, unmanned aerial system, to achieve mobility and autonomy of operations. The paper also discusses some other systems in development pursuing similar goals and reviews some novel applications that become possible with the developed aerial delivery system. 1 I.
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