lukas christensen. robosar hardware novelda impulse radar used to detect movement with high range...

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Lukas Christensen

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Page 1: Lukas Christensen. RoboSAR Hardware Novelda Impulse Radar used to detect movement with high range resolution Novelda Impulse Radar used to detect movement

Lukas Christensen

Page 2: Lukas Christensen. RoboSAR Hardware Novelda Impulse Radar used to detect movement with high range resolution Novelda Impulse Radar used to detect movement

RoboSAR Hardware

• Novelda Impulse Radar used to detect movement with high range resolution

• Two servo pan-tilt system steers radar beam to perform scans

• Low angular resolution due to wide beam and scan speed

• Two-wheeled vehicle with stepper motors for fine movement control and high movement resolution

Page 3: Lukas Christensen. RoboSAR Hardware Novelda Impulse Radar used to detect movement with high range resolution Novelda Impulse Radar used to detect movement

Movement Location

Page 4: Lukas Christensen. RoboSAR Hardware Novelda Impulse Radar used to detect movement with high range resolution Novelda Impulse Radar used to detect movement

Motion Detection0°• Target – 1m• Wall – 3.25m

- 45°• Noise

Page 5: Lukas Christensen. RoboSAR Hardware Novelda Impulse Radar used to detect movement with high range resolution Novelda Impulse Radar used to detect movement

RoboSAR’s Pursuit• Turn towards nearest

significant moving target and move up to it

• Constantly polls infrared sensors and bump sensor while moving forward

• If RoboSAR encounters an obstacle and can’t reach the target, remaining distance to the target is calculated

• Upon reaching the target or an obstacle, a short second scan is used to verify target’s presence and range

• RoboSAR will then around and begin scanning again

Page 6: Lukas Christensen. RoboSAR Hardware Novelda Impulse Radar used to detect movement with high range resolution Novelda Impulse Radar used to detect movement

RoboSAR in DANGER!

• Need source code from the Norwegians• Alternative plan features stationary radar scanning a fixed area• RoboSAR will still carry out same pursuit behavior and return to a

home location near or under the radar