LOW COST, CONTACTLESS POSITION SENSING DEVICE FOR OPTICAL TRACKING, DOCKING, AND STABILIZATION OF UAVS
We have developed a noncontact, robust and lightweight optical Position Sensing Device (PSD) capable of measuring the angular position of a contrasting edge with a very high accuracy in ambient light. This sensor is highly suitable for self positioning or optical tracking systems embedded onboard ships, aircraft, ROV, UAVs, UGVs, microsatellites and landers. The device is also capable to detect the presence of a thin bar present in its visual field of view. GPS based self positioning systems are slow and inaccurate. Besides, they do not allow moving objects to be tracked and may suffer from signal dropouts.