Method and apparatus for locating a golf ball with doppler radar
First Claim
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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Accused Products
Abstract
A method comprises transmitting a radar signal into an target area, receiving reflected portions of the radar signal from the target area, and processing the reflected portions of the radar signal. The step of processing comprises 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. In accordance with the method, a user receives indication from an indicator that a golf ball is present in the target area when the average of the FFT results corresponds to characteristics of the golf ball. The system comprises a radar transceiver, a processor for processing reflected portions of the radar signal, and an indicator indicating to the user a golf ball present in the target area.
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Citations
20 Claims
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1. A method comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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transmitting a doppler radar signal in a 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 generate 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 FFT result falls within a user defined window, the user defined window being based upon predetermined results representative of reflected radar signals corresponding to characteristics of a golf ball. - View Dependent Claims (8, 9, 10)
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11. A system comprising:
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a doppler radar transceiver adapted to transmit a radar signal into a target area and receive reflected portions of the radar signal from the target area; a processor configured to;
(i) window analog signals representative of the reflected portions of the radar signal;
(ii) perform a fast Fourier transform on the windowed analog signals to generate an FFT result for each window; and
(iii) average the FFT results from consecutive windows; anda indicator indicating to the user a golf ball present in the target area when the average of the FFT results falls within a user defined window, the user defined window being based upon predetermined results representative of reflected radar signals corresponding to characteristics of a golf ball when the transceiver is moved across the target area. - View Dependent Claims (12, 13, 14)
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15. A system comprising:
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a doppler radar transceiver adapted to transmit a radar signal into a target area and receive reflected portions of the radar signal from the target area; a processor configured to;
(i) window analog signals representative of the reflected portions of the radar signal;
(ii) perform a fast Fourier transform on the windowed analog signals to generate an FFT result for each window; and
(iii) average the FFT results from consecutive windows; andan indicator configured to indicate 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 when the transceiver is moved across the target area. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification