Navigation system with apparatus for detecting accuracy...

Details Navigation system with apparatus for detecting accuracy... Navigation system with apparatus for detecting accuracy...

G - Physics

01

S

G01S 19/38 (2010.01) G01C 21/00 (2006.01) G01S 5/10 (2006.01)

Patent

CA 2645697

A navigation system (12) for a vehicle having a receiver (14) operable to receive a plurality of signals from a plurality of transmitters includes a processor (16) and a memory device (18). The memory device (18) has stored thereon machine- readable instructions that, when executed by the processor (16), enable the processor (16) to determine a set of error estimates corresponding to pseudo-range measurements derived from the plurality of signals, determine an error covariance matrix for a main navigation solution using ionospheric-delay data, and, using a parity space technique, determine at least one protection level value based on the error covariance matrix.

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