Air combat monitoring system and methods and apparatus useful therefor

• US 5,587,904 A
• Filed: 06/10/1994
• Issued: 12/24/1996
• Est. Priority Date: 06/10/1993
• Status: Expired due to Term

• Current Assignee: Israel Aerospace Industries Limited (Government of Israel)
• Original Assignee: Israel Aerospace Industries Limited (Government of Israel)
• Inventors: Ben-Yair, Igal, Berger, Haim, Perelmuter, Oleg
• Primary Examiner(s): Teska, Kevin J.
• Assistant Examiner(s): FREJD, RUSSELL WARREN
• Application Number:
  US08/258,973
• Time in Patent Office: 928 Days
• Field of Search: 364/423, 364/424.01, 364/424.06, 364/461, 364/462, 364/429, 364/454, 364/578, 364/453, 434/11, 434/14, 434/35, 434/30, 434/14, 89/41.01, 340/988, 342/14, 455/39, 273/439, 375/1, 244/3.14
• US Class Current: 701/213
• CPC Class Codes: F41G 3/04 for dispersing fire from a battery ; for controlling spread of shots; for coordinating fire from spaced weapons
• CPC Class Codes: F41G 3/26 Teaching or practice apparatus for gun-aiming or gun-laying shooting games A63F9/02; light- or radiation-emitting guns F41A33/02; targets therefor F41J; responders, transponders for radar, sonar, lidar G01S13/767, G01S15/74, G01S17/74
• CPC Class Codes: G01S 19/071 DGPS corrections
• CPC Class Codes: G01S 19/14 specially adapted for specific applications
• CPC Class Codes: G01S 19/42 Determining position
• CPC Class Codes: G01S 19/49 whereby the further system is an inertial position system, e.g. loosely-coupled
• CPC Class Codes: G01S 19/51 Relative positioning
• CPC Class Codes: G01S 5/0009 Transmission of position information to remote stations involving assistance data G01S5/0236
• CPC Class Codes: G01S 5/0072 Transmission between mobile stations, e.g. anti-collision systems
• CPC Class Codes: G01S 5/009 Transmission of differential positioning data to mobile

Abstract

An air combat monitoring system comprising a plurality of GPS receivers, mountable on a corresponding plurality of aircraft, an avionics monitor for monitoring the avionics systems of the plurality of aircraft, a memory for storing information received from the GPS receivers indicating the location of the plurality of aircraft and information received from the avionics monitor in order to provide a reviewable output indication of the performance of the plurality of aircraft and an information disseminator for communicating said information among said plurality of aircraft.

Claims

1. An air combat monitoring system comprising:

a plurality of GPS receivers, mountable on a corresponding plurality of aircraft;

an avionics monitor mountable on each of the corresponding plurality of aircraft for monitoring the avionics systems of the aircraft;

a memory for storing information received from the GPS receivers indicating the location of the plurality of aircraft and information received from the avionics monitor in order to provide a reviewable output indication of the performance of the plurality of aircraft;

an information disseminator for communicating said information among said plurality of aircraft including

means employing GPS signals for synchronization of aircraft mounted apparatus on the plurality of aircraft; and

means employing time division multiplexing for communicating said information among the plurality of aircraft.

2. An air combat monitoring system according to claim 1, further comprising an information integrator for integrating time division multiplexed information received from the GPS receivers mounted on the plurality of aircraft, indicating the location of the plurality of aircraft, and information received from the avionics monitors of said aircraft in order to provide an output indication of the performance of the plurality of aircraft.

3. An air combat monitoring system according to claim 2, wherein said information integrator for integrating said time division multiplexed information is aircraft mountable.

4. An air combat monitoring system according to claim 1, further comprising an air-to-ground weapons performance simulator operative in conjunction with a ground unit for providing an output indication of air-to-ground weapons performance.

5. An air combat monitoring system according to claim 1, further comprising an airborne pilot weapon delivery evaluation unit operative in conjunction with a ground unit for computing a location of an aiming cross (CCIP) relative to at least one ground target, at a time at which a weapon was delivered.

6. An air combat monitoring system according to claim 1, further comprising a safety warning indicator for providing safety warnings to an aircraft operator on imminent departure from a predetermined safe flight envelope.

7. An air combat monitoring system according to claim 1, further comprising a safety warning indicator for providing safety warnings to an aircraft operator on imminent entry into forbidden airspace.

8. An air combat monitoring system according to claim 1, further comprising:

a transmitter operative to transmit self-navigational data to the other aircraft once during an individual synchronized time period, said self-navigational data pertaining to a selected point of time of the individual synchronized time period;

a receiver operative to receive other-navigational data from the other-aircraft once during each individual synchronized time period, the other-navigational data pertaining to said selected point of time of the individual synchronized time period; and

a relative position computation unit operative to compare the received other-navigational data pertaining to said selected point of time of each individual synchronized time period to the self-navigational data pertaining to the selected point of time of the individual synchronized time period, for computing the relative position of the self-aircraft to the other-aircraft.

9. An air combat monitoring system according to claim 1, further comprising:

an aircraft collision warning unit operative to generate a warning of an impending collision of the aircraft with another aircraft.

10. An air combat monitoring system according to claim 1, further comprising:

a differential GPS unit operative to receive ongoing pseudo-range corrections from an airborne master on another aircraft;

an airborne master operative to transmit pseudo-range corrections to a differential GPS unit on another aircraft; and

an airborne master controller operative to ensure that the airborne master transmits said corrections only when the aircraft on which the controller is mounted, is capable of generating said corrections.

11. An air combat monitoring system according to claim 10, wherein said controller includes a correction generation capability evaluator operative to evaluate whether the aircraft on which it is mounted is capable of generating said corrections, relative to other aircraft, according to at least one of the following criteria:

centrality of the aircraft'"'"'s location relative to other aircraft;

centrality of the aircraft'"'"'s location relative to a plurality of GPS satellites generating said GPS signals; and

operativity of the navigation system on the aircraft on which the apparatus is mounted.

16. An air combat monitoring system according to claim 8 wherein said selected point of time is at the beginning of each individual synchronized time period.

12. An air combat monitoring method comprising the steps of:

providing a plurality of GPS receivers, mountable on a corresponding plurality of aircraft;

monitoring the avionics systems of the plurality of aircraft;

storing information received from the GPS receivers indicating the location of the plurality of aircraft and information received from the avionics monitor in order to provide a reviewable output indication of the performance of the plurality of aircraft;

communicating said information among said plurality of aircraft;

synchronizing aircraft apparatus mounted on the plurality of aircraft by means of GPS signals received by said GPS receivers; and

time division multiplexing data communicated among the plurality of aircraft.

13. An air combat monitoring method according to claim 12 further comprising the steps of:

transmitting self-navigational data to the other-aircraft once during an individual synchronized time period, said self-navigational data pertaining to a selected point of time of the individual synchronized time period;

receiving other-navigational data from the other-aircraft once during each individual synchronized time period, the other-nagivational data pertaining to the selected point of time of the individual synchronized time period; and

comparing the received other-nagivational data pertaining to the selected point of time of each individual synchronized time period to the self-nagivational data pertaining to the selected point of time of the individual synchronized time period, for computing the relative position of the self-aircraft to the other-aircraft.

14. An air combat monitoring method according to claim 12, further comprising the step of:

generating a warning of an impending collision of the aircraft with another aircraft based on said information indicating aircraft location.

15. An air combat monitoring method according to claim 13 wherein said selected point of time is at the beginning of each individual synchronized time period.