| CPC G01S 19/07 (2013.01) [G01S 19/215 (2013.01)] | 19 Claims |
|
1. A system comprising:
a corrections generation computing system configured to:
determine corrections data for satellite signals received from satellites associated with one or more satellite constellations;
group the corrections data into corrections groups based on a source of error the corrections data accounts for;
for each correction group, generate a signature message with a signature construction consistent with a signature algorithm, wherein the signature message comprises a broadcast counter that increments only when a corrections group is broadcast at a predetermined time;
broadcast the corrections groups and the respective signature message with a predetermined timing, wherein each corrections group of the corrections groups is transmitted separately; and
receive a request to transmit at least one corrections group from the corrections group and transmit the corrections group in response to the request;
wherein each corrections group is configured to be received and verified by a GNSS receiver configured to determine a positioning solution of the GNSS received based on the corrections group.
|