Can you get such an accurate resolution (of the target) using ultra sound (and the range)? I also thought that Doppler radar is harder to implement ... simpler to do the ranging i..e. timing the return pulses (given the low velocities of the objects)
Steve Rubin wrote: > On Sat, Dec 07, 2002 at 01:14:41AM -0800, Alex A. wrote: > > Just to end the discussion: > > > > Doppler shift has nothing to do with radio waves. > > It is true only for sound waves including ultra and infra sound with the > > speed of 330-350 meters/sec depending on air conditions (based on this > > the police radar can count your speed, actually, there are many more > > uses for it). > > > > Sorry, but radio waves have doppler shift too (So does light acually....) > -- > Steve Rubin / AE6CH / Phone: (408)406-1308 > Email: [EMAIL PROTECTED] / N57DL / http://www.tch.org/~ser/ > -- > general wireless list, a bawug thing <http://www.bawug.org/> > [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
