A system for accurately locating a mobile cellular radio includes plural radio receivers, the position of each being precisely known, a satellite-based time source for providing the actual time of arrival of a radio signal at the plural radio receivers, and a device for removing multipath and cochannel...http://www.google.fr/patents/US5317323?utm_source=gb-gplus-shareBrevet US5317323 - Passive high accuracy geolocation system and method
Passive high accuracy geolocation system and method
