2 ms·
Another interesting one, I won't post any more. Can anyone think of a current consumer use of a technique like this? Those Garmin GPS/Radios that track each oth
by jngreenlee 12y ago
Another interesting one, I won't post any more. Can anyone think of a current consumer use of a technique like this? Those Garmin GPS/Radios that track each other is the closest I can think of:
DETERMINE RANGE AND VELOCITY OF AN OBJECT
PATENT NOS.: 7,755,536 AND 7,545,325
This method provides the ability to determine the
position and velocity of a transmitter over a wide
range of bandwidths. The second invention models
the Doppler process as a time shift and change of
scale of the original signal. In this process, the
received signal is delayed in time and dilated. In this
invention, the method of performing the resampling function is to
apply a forward Fourier transform of one length to the zero-padded
signal and apply an inverse Fourier transform of a different length to
the results of the first transform. This pair of operations results in a
resampling of the signal at a rational multiple of the original sample
rate. The scale correlation is then computed as the normal
correlation of the transmitted signal and the resampled signal.
VALUE
Accurate model of Doppler process
Rational signal resampling
- deleted 12y ago[deleted]