Inside Unmanned Systems

DEC 2018 - JAN 2019

Inside Unmanned Systems provides actionable business intelligence to decision-makers and influencers operating within the global UAS community. Features include analysis of key technologies, policy/regulatory developments and new product design.

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ENGINEERING. PRACTICE. POLICY. 43 December 2018/January 2019  unmanned systems inside system could improve the resolution of these systems—for instance, while a driverless car's ultrasound sensors can currently say there is an object on a sidewalk, a Robat-like system could point out the exact location of that object on the sidewalk, he explained. "However, cameras on cars might way that the drone would not see it, and it could crash into the wall," Mueller said. Moreover, LiDAR, time-of-f light cameras and other light-based com- mercial systems are more accurate at measuring distances than acoustic techniques, Eliakim said. Good opti- cal systems are accurate to within 1 to 5 millimeters, whereas "in our acous- tic solution, the accuracy is around 5 centimeters," he said. (Bat sonar can achieve a resolution of roughly 1 cen- timeter, he noted.) Ultrasound sensors are currently used in driverless cars for slow-move- ment applications such as autonomous parking or autonomous braking in traffic jams, Eliakim said. A Robat-like be able to solve the same problem," Mueller said. There are many possible improve- ments the researchers could add to Robat, "such as, for example, using bat-like ears placed around our mi- crophones," which would help chan- nel sound into the sensors, Eliakim said. They also could train the neural network with many more echoes so it can learn to recognize more kinds of objects, he said. And, of course, "in the future, we would also like to mount our sens- ing unit on a f lying robot," Eliakim said. "We are aiming to create a 3-D version of the system, and put it on a drone so we will be able to map an entire environment in 3-D." WE ARE AIMING TO CREATE A 3-D VERSION OF THE SYSTEM, AND PUT IT ON A DRONE SO WE WILL BE ABLE TO MAP AN ENTIRE ENVIRONMENT IN 3-D." Itamar Eliakim, graduate student in mechanical engineering, Tel Aviv University in Israel " PRECISE, RELIABLE WITH AN ATTITUDE septentrio . com/asterx-i The AsteRx-i family Best-in-class IMU enhanced GNSS

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