MEASURING DISTANCE BETWEEN TWO OBJECTS USING RECEIVED SATELLITE TRANSMITTED DATA

摘要

A global position satellite receiver (GPS receiver) (41, 80) is located in a fixed, undefined location on or in the vicinity of a golf course. The distance and direction between the fixed GPS receiver and a pin or object (45, 82) on the golf course is measured using conventional distance and direction measuring apparatus. This is a first measured leg. A mobile GPS receiver (42, 81), with computer (48, 87) is on the golf course. A golf ball (70, 84) is in the fairway of the hole. The fixed GPS receiver receivers first global position satellite signals (GPS Data) from global position satellites (SS) in orbit above the earth, the first GPS Data defining a location for the fixed GPS Receiver. The mobile GPS receiver receives second GPS Data from the global position satellites which define a location for the mobile GPS receiver. Both sets of GPS Data are identically contaminated and both location definitions are unreliable in accuracy. The first GPS Data and the second GPS Data are mathematically calculated to derive the distance and direction between the fixed GPS receiver and the mobile GPS receiver.