Conventional secondary radar systems use mechanically rotating antennas to radiate a concentrated beam that rotates in a horizontal plane. Data exchange between ground stations and airborne transponders can only take place if the aircraft is struck by the antenna lobe. The distance from the aircraft...http://www.google.es/patents/US5363109?utm_source=gb-gplus-sharePatente US5363109 - Method of correcting measurement errors caused by clock deviations in a secondary radar system
Method of correcting measurement errors caused by clock deviations in a ...
