A midair collision avoidance system (MCAS) employs an existing design of Traffic Alert and Collision Avoidance System (TCAS) as a module and seamlessly integrates it with a customized tactical module which is capable of providing unique tactical avoidance guidance control and display. The tactical module...http://www.google.ca/patents/US6531978?utm_source=gb-gplus-sharePatent US6531978 - Midair collision avoidance system
