Claims
- 1. Apparatus for locating at least two targets comprising:
- a transmitter of electromagnetic radiation for directing electromagnetic radiation to said at least two targets,
- a receiver of electromagnetic radiation for intercepting reflected electromagnetic radiation or transponded electromagnetic radiation from said at least two targets, said receiver not receiving electromagnetic radiation directly from said transmitter for subsequent processing,
- a processor operationally engaged to said receiver and independent of said transmitter for accepting signals from said receiver, said signals characterizing said reflected electromagnetic radiation or said transponded electromagnetic radiation from said at least two targets, and
- programs running in said processor for computing said locations of any of said at least two targets from said signals even though said receiver has not been manipulated to be synchronized with said transmitter.
- 2. The apparatus of claim 1 wherein said receiver has direction-finding capability.
- 3. The apparatus of claim 2 wherein the location of said transmitter is stored in said processor.
- 4. The apparatus of claim 3 wherein said processor is adapted to accept signals characterizing the radiation reflected or transponded from two targets and wherein said programs are adapted to compute the locations of said two targets.
- 5. The apparatus of claim 3 wherein said processor is adapted to accept signals characterizing the radiation reflected or transponded from three targets and wherein said programs are adapted to compute the locations of said three targets.
- 6. The apparatus of claim 2 wherein said processor is adapted to accept signals characterizing the radiation reflected or transponded from four targets and wherein said programs are adapted to compute the locations of said four targets and said transmitter.
- 7. Apparatus for locating at least two targets comprising:
- at least two transmitter of electromagnetic radiation for directing electromagnetic radiation to said at least two targets,
- a receiver of electromagnetic radiation for intercepting reflected electromagnetic radiation or transponded electromagnetic radiation from said at least two targets, said receiver not receiving electromagnetic radiation directly from said transmitter for subsequent processing,
- a processor operationally engaged to said receiver and independent of said transmitter for accepting signals from said receiver, said signals characterizing said reflected electromagnetic radiation or said transponded electromagnetic radiation only from said at least two targets, and
- programs running in said processor for computing said locations of any of said at least two targets from said signals, even though said receiver has not been manipulated to be synchronized with said transmitter.
- 8. The apparatus of claim 7 wherein the locations of said at least two transmitters are stored in said processor.
- 9. The apparatus of claim 8 wherein said processor is adapted to accept signals characterizing the radiation reflected or transponded from two targets and wherein said programs are adapted to compute the locations of said two targets.
- 10. Apparatus for locating at least two targets comprising:
- a transmitter of electromagnetic radiation for directing electromagnetic radiation in the form of pulses at a pulse repetition interval and a phase to said at least two targets,
- a receiver of electromagnetic radiation for intercepting reflected electromagnetic radiation or transponded electromagnetic radiation from said at least two targets, said receiver not receiving electromagnetic radiation directly from said transmitter for subsequent processing,
- a processor operationally engaged to said receiver and independent of said transmitter for accepting signals from said receiver, said signals characterizing said reflected electromagnetic radiation or said transponded electromagnetic radiation only from said at least two targets, and
- programs running in said processor for computing the pulse repetition interval and phase of the transmitted radiation, and for producing a signal simulating the transmitter pulses, and
- a bistatic processor for accepting signals characterizing said reflected electromagnetic radiation or said transponded electromagnetic radiation from said at least two targets and said signal simulating said transmitter pulses, and for computing said locations of any of said at least two targets, even though said receiver has not been manipulated to be synchronized with said transmitter.
- 11. The apparatus of claim 10 wherein said receiver has direction-finding capability.
- 12. The apparatus of claim 11 wherein the location of said transmitter is stored in said processor.
- 13. The apparatus of claim 12 wherein said processor is adapted to accept signals characterizing the radiation reflected or transponded from two targets and wherein said bistatic processor is adapted to compute the locations of said two targets.
- 14. The apparatus of claim 10 wherein the signals characterizing the electromagnetic radiation reflected or transponded from said targets accepted by said bistatic processor are accepted from a second receiver of electromagnetic radiation, said receiver not necessarily positioned within line-of-sight of said transmitter.
- 15. Apparatus for locating a transmitter which is directing electromagnetic radiation to at least two targets, comprising:
- a receiver of electromagnetic radiation for intercepting reflected electromagnetic radiation or transponded electromagnetic radiation from said at least two targets, said receiver not receiving electromagnetic radiation directly from said transmitter for subsequent processing,
- a processor operationally engaged to said receiver and independent of said transmitter for accepting signals from said receiver, said signals characterizing the reflected electromagnetic radiation or transponded electromagnetic radiation from said at least two targets, and
- programs running in said processor for computing said location of said transmitter from said signals, even though said receiver has not been manipulated to be synchronized with said transmitter.
- 16. The apparatus of claim 15 wherein the locations of two targets are stored in said processor and wherein said processor is adapted to accept signals characterizing the radiation reflected or transponded from said two targets.
- 17. The apparatus of claims 1, 7, or 10 further comprising display means for displaying computed target location or locations.
- 18. The apparatus of claim 15 further comprising display means for displaying computed transmitter location.
- 19. The apparatus of claims 1, 7, or 10 further comprising means for inputting a computed target location into a control system guiding a projectile aimed at the target.
- 20. The apparatus of claim 15 further comprising means for inputting a computed transmitter location into a control system guiding a projectile aimed at the transmitter.
- 21. The apparatus of claims 1, 7, or 10 further comprising means for inputting a computed target location into a control system guiding target trajectory.
- 22. The apparatus of claim 15 further comprising means for inputting a computed transmitter location into a control system guiding transmitter trajectory.
- 23. Method for generating the location of at least two targets comprising the steps of:
- providing a receiver characterized by an ability to receive electromagnetic radiation reflected and transponded from a target when said target is illuminated by a transmitter,
- allowing the receiver to receive electromagnetic radiation from said at least two targets illuminated by transmitted electromagnetic radiation from said transmitter under conditions where the receiver does not receive electromagnetic radiation directly from the transmitter and the receiver is not manipulated to be synchronized with the transmitter, and
- computing said locations of said at least two targets from said received electromagnetic radiation without receiving additional information directly from said transmitter.
- 24. Method for generating the locations at least two targets comprising the steps of:
- providing a receiver characterized by an ability to receive electromagnetic radiation in the form of pulses at a pulse repetition interval and phase reflected and transponded from a target when said target is illuminated by a transmitter,
- allowing the receiver to receive said electromagnetic radiation from said at least two targets illuminated by transmitted electromagnetic radiation from said transmitter under conditions where the receiver does not receive electromagnetic radiation directly from the transmitter and the receiver is not manipulated to be synchronized with the transmitter,
- computing the pulse repetition interval and phase of the transmitted radiation from signals derived only from said received electromagnetic radiation,
- producing a signal simulating said transmitted electromagnetic radiation, and
- performing bistatic processing on said received electromagnetic radiation and said signal simulating said transmitted pulses to compute said locations of said at least two targets, said performing of bistatic processing without receiving additional information directly from said transmitter.
- 25. Method for generating a location of a transmitter comprising the steps of:
- providing a receiver characterized by an ability to receive electromagnetic radiation in the form of pulses at a pulse repetition interval and phase reflected and transponded from a target when said target is illuminated by a transmitter,
- allowing the receiver to receive electromagnetic radiation from said at least two targets illuminated by transmitted electromagnetic radiation from said transmitter under conditions where the receiver does not receive electromagnetic radiation directly from the transmitter and the receiver is not manipulated to be synchronized with the transmitter, and
- computing said locations of any of said transmitter from said received electromagnetic radiation without receiving additional information directly from said transmitter.
- 26. Apparatus for locating targets, the apparatus comprising:
- a receiver that only electromagnetic radiation signals reflected or transponded from targets that have been illuminated by a transmitter; and
- a computer that is operationally engaged with the receiver and independent of the transmitter, the computer running a program that extracts timing information from the received signals, whereby, when the receiver receives radiation from at least two targets, the program calculates the positions of those targets even though the receiver has not been manipulated to be synchronized with the transmitter.
Parent Case Info
This is a continuation of application Ser. No. 07/756,615 filed on Sep. 9, 1991 now abandoned.
US Referenced Citations (19)
Continuations (1)
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Number |
Date |
Country |
Parent |
756615 |
Sep 1991 |
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