An apparatus and method for measuring dynamic movement of a vehicle (10) by employing multiple GPS satellites and determining velocity based change in the carrier frequency of multiple satellite signals. The apparatus includes at least two GPS receiving antennas (12a and 12b) installed on a vehicle (10)...http://www.google.com.au/patents/US6671587?utm_source=gb-gplus-sharePatent US6671587 - Vehicle dynamics measuring apparatus and method using multiple GPS antennas
