Abstract: A golfing apparatus for estimating the carry distance of a struck golf ball includes a doppler radar unit, a correlating circuit and a display. The doppler radar unit measures the doppler shift of the struck golf ball and a predetermined, empirically derived factor is used to correlate the measured doppler shift to an estimated carry distance for the ball. The display shows the estimated carry distance.

Abstract: A golfing apparatus includes a speed measuring mechanism, a saturation detector, either an acoustic trigger or an optical trigger, a correlator and a display. The speed measuring mechanism has a boresight disposed at an angle with respect to level ground so that it can be aimed at the golf ball while in flight. Either the acoustic trigger or the optical trigger generates a trigger signal in response to either the sound or the sight of the struck golf ball. The saturation detector detects movement of either a club head or the struck golf ball and provides an indication signal that there is a STRONG SIGNAL condition. The trigger signal and the indication signal are ANDED together in order to turn on the speed measuring mechanism to allow the measurement of the speed of the golf ball. The speed measuring mechanism measures the component of the speed of the golf ball which is parallel to the boresight.

Abstract: A golfing apparatus determines the carrying distance of a golf ball which has a golfer has struck and includes a speed measuring mechanism, either an acoustic trigger or an optical trigger, a correlator and a display. The speed measuring mechanism has a boresight disposed at angle in the range of zero degrees to twenty five degrees with respect to level ground so that it can be aimed at the struck golf ball while in flight. Either the acoustic trigger or the optical trigger is electrically coupled to the speed measuring mechanism and turns on the speed measuring mechanism in response to either the sound of the struck golf ball or the sight of the golf club striking the golf ball, respectively. The speed measuring mechanism measures the component of the speed of the golf ball which is parallel to the boresight.

Abstract: A golfing apparatus for determining the carry distance of a golf ball in flight includes a doppler radar unit, a measuring cone, a correlating circuit and a display. The doppler radar unit has a housing, a transmitter and receiver unit and a counter. The transmitter and receiver unit is disposed in the housing and transmits electromagnetic energy towards the golf ball in order to produce a plurality of pulses which is the Doppler shift of the electromagnetic energy. The counter is electrically coupled to the transmitter and receiver unit and counts the plurality of pulses over a preselected period of time. The golf ball passes through the measuring cone and the doppler radar unit measures speed of the golf ball therein. The correlating circuit is electrically coupled to the doppler radar unit and correlates the measured speed of the golf ball with a carry distance.