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TRACKING SYSTEMS



       Acoustic tracking



         ● Use techniques for identifying an object or device's position similar to those

               found naturally in animals that use echolocation.

         ● Analogous to bats locating objects using differences in soundwave return

               times to their two ears.

                 ○    May use sets of at least three ultrasonic sensors and at least three ultrasonic transmitters on

                      devices in order to calculate the position and orientation of an object
                 ○    E.g. a handheld controller
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