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Method and apparatus for locating a golf ball with doppler radar

  • US 8,400,346 B2
  • Filed: 06/25/2010
  • Issued: 03/19/2013
  • Est. Priority Date: 06/25/2010
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • transmitting a doppler radar signal into an target area by moving a transmitter of the radar signal across the target area;

    receiving reflected portions of the radar signal from the target area;

    processing the reflected portions of the radar signal by windowing analog signals representative of the reflected portions of the radar signal, performing a fast Fourier transform on the windowed analog signals to produce an FFT result for each window, and obtaining the average of the FFT results from consecutive windows; and

    indicating to the user a golf ball present in the target area when the average of the FFT results corresponds to characteristics of a golf ball.

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