Golf playing field with ball detecting radar units

Claim 1

A golf playing area, comprising: a playing field, a tee area at one end of said playing field, a plurality of radar ground surveillence units located along a straight line extending from said tee area on said playing field, at successively greater distances from said tee area, each of said units comprising means for detecting by radar all golf balls moving on the ground through a predetermined circular area of said playing field centered at the unit resulting from golf shots from said tee area, said units being successively spaced from each other at such distances that the predetermined circular areas of adjacent ones of said units at successively greater distances from said tee area overlap so that all of said predetermined areas define a combined continuous area, and central control means, including a computer video display terminal adjacent said tee area and responsive to the output of said units, for calculating and displaying on said terminal a visual indication of the distance of the furthest one of said units detecting a golf ball moving in one of the predetermined areas containing said units from the tee area, and the sum of succession of distances calculated by said central control means.