Alternative systems and methods for global positioning, navigation, and timing

A method for providing positioning, navigation, and timing as a service (PNTaaS), the method comprising:

• collecting, using a monitor station and a high gain antenna, a snapshot of a signal of opportunity broadcast by a satellite;
• associating the snapshot with a data packet that includes a satellite identifier, a time of collection, and a collection interval;
• publishing the snapshot and the data packet to a network;
• providing the snapshot and the data packet to a reference station that is a network subscriber, and wherein the reference station generates a reference snapshot from the signal, and a reference time of arrival (TOA) of the snapshot, and publishes the reference TOA and a reference station location to the network;
• and
• providing the snapshot, the data packet, and the reference TOA to a remote receiver that is a network subscriber, wherein the remote receiver generates a remote snapshot from the signal and a remote time of arrival (TOA) of the snapshot, and develops a PNT solution.

A method of developing a positioning, navigation, and timing (PNT) solution at a remote receiver, comprising:

• accessing a snapshot captured by a high gain antenna from a signal broadcast by a satellite, wherein the snapshot is published to a network;
• generating a remote snapshot from the signal comprising a remote time of arrival (TOA) relative to a remote time reference;
• receiving a reference identifier indicating a reference station, a location of the reference station, a reference TOA of the signal, and a reference range that is observed from the satellite to the reference station;
• determining a remote time of arrival relative to a remote clock;
• generating a pseudo-range from the satellite to the remote receiver;
• and
• developing the PNT solution at the remote receiver using the pseudo-range.