| 主权项 |
1. A method to determine time-space-position-information for at least one air-based platform in a flight test, comprising:
(a) providing a system having components to collect time-space-position-information (TSPI), said system components, comprising:
at least one air-based platform having an on-board navigation system, a dedicated on-board transmitter, and a dedicated on-board receiver, wherein said on-board navigation system is configured for computing time-space-position-information (TSPI) and providing a wireless data link between said at least one air-based platform and the ground, wherein said dedicated on-board transmitter and said dedicated on-board receiver are configured for transmitting and receiving signals with navigation information, control commands, and messages through said wireless data link, wherein said at least one air-based platform is selected from the group of air-based platforms consisting of air vehicles, rockets, launch vehicles, aerostats, space vehicles, and precision guided munitions;a plurality of ground-based components in communication with said at least one air-based platform; (b) initializing said system for a flight test, said initializing task, comprising:
determining whether said flight test is a GPS-denied test;
when said flight test is a GPS-denied test, remotely initializing and configuring said system to operate without GPS; andwhen said flight test is not a GPS-denied test, remotely initializing and configuring said system to operate using GPS; (c) starting said flight test; (d) remotely monitoring said system to determine system diagnostics, said system diagnostics indicating system health;
when it is determined that said system is not functioning properly, diagnosing system problem;fixing system problem by remote reconfiguration or manual repair and iterating through task (d) until said system is functioning properly; (e) receiving TSPI data with a plurality of ground-based receiver nodes through a wireless data link signal transmitted from said dedicated on board transmitter on said at least one air-based platform, wherein said dedicated on board transmitter uses a known transmitter signal waveform, wherein said plurality of ground-based receiver nodes match an internally generated signal waveform to said known transmitter signal waveform to measure time of arrival (TOA) and frequency of arrival (FOA); (f) collecting said TSPI data when said system is determined to be functioning properly; (g) sending TSPI data to a ground processing station; (h) processing said TSPI data with said ground processing station and geolocating said on-board transmitter using emitter signal geolocating techniques, said emitter signal geolocating techniques selected from the group of emitter signal geolocating techniques consisting of time of arrival (TOA), frequency of arrival (FOA), time difference of arrival (TDOA), and frequency difference of arrival (FDOA); (i) determining whether said flight test is complete;
when it is determined that said flight test is not complete, iterating through tasks (d) through (i), until it is determined that said flight test is complete; (j) collecting said system components and said TSPI data; and (k) outputting said TSPI data in a tangible medium. |
