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UAV’s: Scenarios

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

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UAV’s: Scenarios

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  1. 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

  2. Parachutes Drift Ascent Deployment Stage Scenario Endurance 3-7 min Ejection • 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. End Game

  3. 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

  4. 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

  5. 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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