This month´s covers ...

Front cover: A real-time method to calculate the 3D location of a fixed target detected by a gimbaled The camera in a fixed-wing experimental unmanned aerial vehicle (UAV) equipped with a single-antenna GPS Front: receiver on-board; the camera was operated by an algorithm that automatically tracked the detected target, and the location was obtained using triangulation. The unmanned aircraft and the camera module used for the flight tests are shown. The aircraft had improved stability characteristics and a short take-off range with a wingspan of 2.5 mn. It was equipped with a 48cc gasoline engine and a pusher-type propeller. It flew for 15 minutes at full throttle. The camera module, made of wood to reduce weight, consisted of two servomotors, a CCD zoom camera M300HM (LG Electronics, Inc., Seoul, Korea), an AVR board controller, and a transparent plastic dome for protection. The camera model had a 27x optical zoom capability and RS 232 control. The camera was attached to the bottom of the aircraft. Back cover: State of New Jersey Historical Marker at Belmar, NJ, USA.