A method for compiling and evaluating local traffic data based on a real time evaluation of Doppler echoes on a digital basis, wherein initially the frequency spectrum of the Doppler echo is formed, then the frequency of the maximum amplitude in this spectrum is identified, and the speed of the vehicle...http://www.google.fr/patents/US4985705?utm_source=gb-gplus-shareBrevet US4985705 - Method and apparatus for compiling and evaluating local traffic data
Method and apparatus for compiling and evaluating local traffic data
