A system and method for navigation utilizing sources of pulsed celestial radiation are provided. A spacecraft, satellite, or other vehicle (12) has a pulse sensor (22) mounted thereto for detecting signal pulses (14) generated by a plurality of pulsars or other celestial objects (16). The detected signal...http://www.google.ca/patents/US7197381?utm_source=gb-gplus-sharePatent US7197381 - Navigational system and method utilizing sources of pulsed celestial radiation
