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Published byDerick Barker Modified over 9 years ago
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UAV’s: Scenarios Smart bombs no need to return to base Reconnaissance/surveillance types of sensors used, mission specifics (e.g. round trip, refuel & return) Power source rechargeable battery (by propulsion) standalone battery running off the generator directly Application SAR - resolution, speed of aircraft, type of aircraft, number of aircraft Cooperating fleet homogeneous vs. heterogeneous
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Deployment Stage Scenario Ejection End Game Drift Parachutes Ascent Ejection: Air carrier charges battery, downloads software, then launches weapons group near targets at high speed. Drift: Radar and acoustic sensors locate potential targets. Ascent: Power boost propels the weapon upward to increase target seek time. End Game: Individual targets are selected and IR sensor provides precision guidance. Endurance 3-7 min
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How to get description of application? System level description block diagram level (UML) dataflow (UML annotation) / control flow (UML maybe) Data sets sensory traces / activations UAV specific smart bomb - stage scenarios: GPS / target detection inflight avoiding obstacles on target final steering towards target - propulsion control communication requirements Power source voltage, power rating Weight/volume constraints
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Appropriate metrics MIPS per watt higher MPW=> can fly faster and survey larger areas keep algorithm same Task per watt (or joule over time) peak power, current limitations task completion time communication power Computation resources required parts cost, system cost weight maximum clock rate, memory footprint, secondary storage busses/wires count/weight
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Baseline? Existing working system in field extrapolated missile system from Northrop Grumman Los Alamos - defining radar system on UAV Lincoln Lab RASSP-SAR benchmark Tradeoffs Communication vs. computation: modular simulation environment for modeling communication vs. computation issues Sensor power vs. computation or communication power (clean the noise with computation rather than re-sense)
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