Greetings'
quote:
However, the other three factors are availabitliy, reliability
and integrity. On the last parameter, i.e. integrity, GPS fails in more than one respect to be a precision system.
Availability,
Continuity, and Integrity are criteria that if demonstrated at 95% of the time will grant a sole mean of navigation certification status to the system.
Now as integrity is a stake for the GPS, then it cannot be certified as sole mean but as PRIMARY mean of navigation, PRECISION has nothing to do with this
Furthermore as per TSO129C a self embarked software, within the receiver, has to have the capabitility to verify the integrity, in our case it is called RAIM, Receiver Autonomous Integrity Monitoring
