TRANSMISSION OF INFORMATION TO A SYSTEM UTILIZING A GPS DEVICE
A system for transmitting non-GPS information for reception by a global positioning system (GPS) receiver, the system including a processor, a memory coupled to the processor and including computer-readable instructions configured to, when executed by the processor, cause the processor to receive the non-GPS information, determine an available pseudo-random noise (PRN) code, spread the non-GPS information using the available PRN code to provide a spread signal, modulate a GPS carrier frequency using the spread signal to produce a GPS compatible signal, and a terrestrial transmitter configured to transmit the GPS compatible signal.
1 . A method comprising:
selecting a plurality of predefined pseudo-random noise (PRN) codes from a set of PRN codes used to transmit global positioning (GPS) signals;
receiving non-GPS information;
transmitting multiple information streams in a plurality of GPS compatible signals containing the non-GPS information according to the plurality of predefined PRN codes;
wherein the non-GPS information includes information adapted to be interpreted by an intended receiving device.
2 . The method of claim 1 wherein transmitting multiple information streams comprises transmitting from a mobile platform.
3 . The method of claim 1 wherein transmitting multiple information streams comprises transmitting the multiple information streams to an element in flight.
4 . The method of claim 3 wherein the element in flight comprises a global positioning system aided munition.
5 . The method of claim 1 wherein the non-GPS information comprises an image file.
6 . The method of claim 1 wherein the non-GPS information comprises video data or files.
7 . The method of claim 1 wherein the non-GPS information comprises software updates.
8 . The method of claim 1 wherein the non-GPS information comprises encrypted data.
9 . A method comprising:
selecting a plurality of predefined pseudo-random noise (PRN) codes from a set of PRN codes used to transmit global positioning (GPS) signals;
receiving non-GPS information;
transmitting a single information stream split into multiple streams in a plurality of GPS compatible signals containing the non-GPS information according to the plurality of predefined PRN codes;
wherein the non-GPS information includes information adapted to be interpreted by an intended receiving device.
10 . A system comprising:
a PRN code selector adapted to select a plurality of pre-defined pseudo-random noise (PRN) codes from a set of PRN codes used to transmit global positioning system (GPS) signals; and
a GPS transmitter adapted to receive non-GPS information and produce a plurality of GPS compatible signals containing the non-GPS information according to the plurality of selected PRN codes; and
wherein the non-GPS information includes information adapted to be interpreted by an intended receiving device.
11 . The system of claim 10 wherein the GPS transmitter adapted to receive the non-GPS information receives a single information stream and splits the single information stream into multiple streams for transmission according to the plurality of selected PRN codes.
12 . The system of claim 10 wherein the GPS transmitter adapted to receive the non-GPS information receives a plurality of information streams and transmits corresponding ones of the plurality of information streams according to corresponding ones of the plurality of selected PRN codes.
13 . The system of claim 10 wherein the GPS transmitter comprises a mobile platform.
14 . The system of claim 10 wherein the GPS transmitter transmits to a flying intended receiving device.
15 . The system of claim 14 wherein the GPS transmitter transmits to a global positioning system aided munition.
16 . The system of claim 10 wherein the GPS transmitter transmits the GPS-compatible signal at a lower duty cycle than the corresponding GPS satellite associated with the selected PRN code.
17 . The system of claim 16 wherein the duty cycle comprises a duty cycle that is 10-30% of the duty cycle of the corresponding GPS satellite associated with the selected PRN codes.
18 . The system of claim 10 wherein the non-GPS information includes control information adapted to control operation of the intended receiving device.
19 . The system of claim 18 wherein the control information is adapted to cause the intended receiving device to self-destruct.