Airspace management system and method

• US 5,554,990 A
• Filed: 08/22/1995
• Issued: 09/10/1996
• Est. Priority Date: 08/22/1995
• Status: Expired due to Term

• Current Assignee: Northrop Grumman Systems Corporation (Northrop Grumman Corporation)
• Original Assignee: Northrop Grumman Corporation
• Inventors: McKinney, Terry L.
• Primary Examiner(s): Sotomayor, John B.
• Application Number:
  US08/518,133
• Time in Patent Office: 385 Days
• Field of Search: 342/13, 342/29, 342/30, 342/32, 342/36, 342/37, 342/38, 342/46, 342/45, 342/176, 342/178, 342/179, 342/181, 342/182
• US Class Current: 342/36
• CPC Class Codes: G01S 13/781 Secondary Surveillance Radar [SSR] in general
• CPC Class Codes: G01S 13/91 for traffic control G01S13/93 takes precedence
• CPC Class Codes: G01S 7/22 Producing cursor lines and indicia by electronic means
• CPC Class Codes: G01S 7/295 Means for transforming co-ordinates or for evaluating data, e.g. using computers

Abstract

An airspace management system and method includes an alternate quick look mode display option which allows a user to designate a specific geographic region for display in a specified area on a display screen. Within this specified area, which can encompass a portion or all of the display screen, radar plot data is displayed for at least one aircraft for which input radar information is received. Symbols can be assigned to aircraft to differentiate friend and enemy aircraft; colors can be assigned to differentiate friend and enemy aircraft and plots; and radar-measured height information can optionally be displayed. In this quick look mode, near real-time positions for all aircraft within the quick look mode window are displayed, since selection of the quick look mode window bypasses normal time-consuming tracking information processing. Thus, a controller can view only essential plot and identification data in an aerial combat situation or to control an aircraft on a landing approach for example, with other portions of the display screen other than the quick look mode window, remaining unaffected. This airspace management system and method thereby combines the most useful attribute of an automated system, namely the automatic tracking of all aircraft, with the most useful attribute of a manual system, namely the near real time display of aircraft locations.

Claims

1. A method, comprising the steps of:

(a) receiving input radar information for at least one aircraft;

(b) selecting an alternate display mode other than a normal display mode;

(c) designating at least a portion of a display screen as an area for display of at least a portion of the received radar information in the selected alternate display mode; and

(d) displaying a radar plot of at least one aircraft for which input radar information is received, in the designated area of the display screen.

2. The method of claim 1, further comprising the steps of:

(e) receiving aircraft identifying data identifying at least one aircraft with the input radar information of step (a); and

(f) assigning a symbol to at least one identified aircraft, prior to display in step (d) and based upon corresponding aircraft identifying data received, wherein the assigned symbol is displayed with the corresponding radar plot for at least one aircraft in step (d).

3. The method of claim 2, further comprising the steps of:

(g) assigning a color to at least one radar plot, prior to display in step (d) and based upon corresponding aircraft identifying data, wherein at least one of the corresponding aircraft identifying data and corresponding radar plot are displayed in the assigned color in step (d).

4. The method of claim 2, further comprising the step of:

(g) receiving aircraft altitude data identifying the altitude of at least one aircraft, with the input radar information of step (a), wherein the received aircraft altitude data is displayed with the assigned symbol of at least one corresponding radar plot in step (d).

5. The method of claim 1, wherein the designating of step (c) is variable.

6. The method of claim 1, further comprising the steps of:

(e) receiving aircraft identifying data identifying at least one aircraft, with the input radar information of step (a); and

(f) assigning a symbol to at least one identified aircraft, prior to display in step (d) and based upon corresponding aircraft identifying data received, wherein the assigned symbol is repeatedly displayed as the corresponding radar plot for at least one aircraft in step (d).

7. The method of claim 6, further comprising the step of:

(g) receiving aircraft altitude data identifying the altitude of at least one aircraft, with the input radar information of step (a), wherein the received aircraft altitude data is displayed with the assigned symbol of at least one corresponding radar plot in step (d).

8. The method of claim 1, wherein input radar information is received from a plurality of independent radar stations in step (a), each at a different location, the method further comprising the step of:

(e) selecting at least one of the plurality of independent radar stations, wherein display of step (d) is based upon input radar information from only the selected at least one radar station.

9. The method of claim 8, further comprising the step of:

(f) correlating input radar information, from each of a plurality of selected radar stations for each at least one same aircraft, upon at least two of the plurality of independent radar stations being selected in step (e), and displaying a radar plot for at least one aircraft in step (d) based upon the correlated input radar information.

10. The method of claim 1, wherein a radar plot is displayed in the designated area of the display screen and radar tracking information is displayed in an area of the display screen other than the designated area.

11. The method of claim 1, further comprising the step of:

(e) designating a geographic region represented by the designated area of the display screen.

12. The method of claim 11, wherein a size of the geographic region designated in step (e) is variable.

13. The method of claim 2, wherein each assigned symbol of step (f) corresponds to one of a friendly aircraft, an enemy aircraft, and a neutral aircraft.

14. The method of claim 6, wherein each assigned symbol of step (f) corresponds to one of a friendly aircraft, an enemy aircraft, and a neutral aircraft.

15. A method, comprising the steps of:

(a) receiving input radar information for at least one aircraft;

(b) selecting an optional display mode, other than a normal display mode;

(c) designating an area of a display screen for display of at least a portion of the received radar information in the selected optional display mode;

(d) designating a geographic region represented by the area designated in step (c);

(e) displaying a radar plot for at least one aircraft for which input radar information is received, within the designated geographic region of step (d), in the designated area of the display screen;

(f) processing radar tracking information for each aircraft for which input radar information is received, outside the designated geographic region of step (d); and

(g) displaying processed radar tracking information in an area of the display screen other than the designated area of step (c).

16. The method of claim 15, further comprising the steps of:

(h) receiving aircraft identifying data identifying at least one aircraft with the input radar information of step (a); and

(i) assigning a symbol to at least one identified aircraft, prior to display in step (e) and based upon corresponding aircraft identifying data received, wherein the assigned symbol is displayed with the corresponding radar plot for at least one aircraft in step (e).

17. The method of claim 16, further comprising the steps of:

(j) assigning a color to at least one radar plot, prior to display in step (e) and based upon corresponding aircraft identifying data, wherein at least one of the corresponding aircraft identifying data and corresponding radar plot are displayed in the assigned color in step (e).

18. The method of claim 16, further comprising the step of:

(j) receiving aircraft altitude data identifying the altitude of at least one aircraft, with the input radar information of step (a), wherein the received aircraft altitude data is displayed with the assigned symbol of at least one corresponding radar plot in step (e).

19. The method of claim 15, further comprising the steps of:

(h) receiving aircraft identifying data identifying at least one aircraft, with the input radar information of step (a); and

(i) assigning a symbol to at least one identified aircraft, prior to display in step (e) and based upon corresponding aircraft identifying data received, wherein the assigned symbol is repeatedly displayed as the corresponding radar plot for at least one aircraft in step (e).

20. The method of claim 19, further comprising the step of:

(j) receiving aircraft altitude data identifying the altitude of at least one aircraft, with the input radar information of step (a), wherein the received aircraft altitude data is displayed with the assigned symbol of at least one corresponding radar plot in step (e).

21. The method of claim 15, wherein input radar information is received from a plurality of independent radar stations in step (a), each at a different location, the method further comprising the step of:

(h) selecting at least one of the plurality of independent radar stations, wherein display of step (e) is based upon input radar information from only the selected at least one radar station.

22. The method of claim 21, further comprising the step of:

(i) correlating input radar information, from each of a plurality of selected radar stations for each at least one same aircraft, upon at least two of the plurality of independent radar stations being selected in step (h), and displaying a radar plot for at least one aircraft in step (e) based upon the correlated input radar information.

23. The method of claim 16, wherein each assigned symbol of step (i) corresponds to one of a friendly aircraft, an enemy aircraft, and a neutral aircraft.

24. The method of claim 19, wherein each assigned symbol of step (i) corresponds to one of a friendly aircraft, an enemy aircraft, and a neutral aircraft.

25. An airspace management system comprising:

first means for receiving input radar information for at least one aircraft;

second means for processing radar tracking information from received input radar information;

selection means for selecting at least one of a standard display mode and a quick look display mode, the received input radar information passing from the first means to said second means for processing upon selecting the standard display mode, and at least a portion of the received input radar information bypassing said second means upon selecting the quick look display mode;

designation means for designating a geographic region, from which input radar information is received, and for designating an area of a display means for display of input radar information from the designated geographic region, upon selecting the quick display mode; and

said display means displaying a radar plot, for at least one aircraft for which input radar information from the designated geographic region is received, in the designated area upon selecting the quick display mode, and displaying processed radar tracking information from the second means, for at least one aircraft for which input radar information outside the designated geographic region is received, in a display area other than the designated area.

26. The system of claim 25, wherein aircraft identifying data, identifying at least one aircraft, is received by the first means with the input radar information, the system further comprising,

assignment means for assigning a symbol to at least one identified aircraft based upon corresponding aircraft identifying data received, said display means displaying the assigned symbol with the corresponding radar plot upon selecting the quick mode.

27. The system of claim 26, wherein the assignment means further assigns a color to at least one radar plot based upon corresponding aircraft identifying data, said display means displaying at least one of the corresponding aircraft identifying data and the corresponding radar plot in the assigned color.

28. The system of claim 26, wherein aircraft altitude data, identifying the altitude of at least one aircraft, is received by the first means with the input radar information, said display means displaying the received aircraft altitude data with the assigned symbol of at least one corresponding radar plot.

29. The system of claim 25, wherein aircraft identifying data, identifying at least one aircraft, is received by the first means with the input radar information, the system further comprising,

assignment means for assigning a symbol to at least one identified aircraft based upon corresponding aircraft identifying data received, said display means repeatedly displaying the assigned symbol as the corresponding radar plot for at least one aircraft.

30. The system of claim 29, wherein aircraft altitude data, identifying the altitude of at least one aircraft, is received by the first means with the input radar information, said display means displaying the received aircraft altitude data with the assigned symbol of at least one corresponding radar plot.

31. The system of claim 25, wherein input radar information is received from a plurality of independent radar stations, each at a different location, the system further including,

radar selecting means for selecting at least one of the plurality of independent radar stations, wherein display by said display means is based upon input radar information from only the selected at least one radar station.

32. The system of claim 31, further comprising:

correlation means for correlating input radar information, from each of a plurality of selected radar stations, for each at least one same aircraft, upon at least two of the plurality of independent radar stations being selected by the radar selecting means, said display means displaying a radar plot for at least one aircraft based upon the correlated input radar information.

33. The system of claim 26, wherein the assignment means assigns one of a friendly aircraft, enemy aircraft, and a neutral aircraft symbol.

34. The system of claim 29, wherein the assignment means assigns one of a friendly aircraft, enemy aircraft, and a neutral aircraft symbol.

35. An article of manufacture for use in a computer, comprising:

first computer readable code means for causing the computer to receive a selection of an alternate display mode, other than a normal display mode;

second computer readable code means for causing the computer to receive a designation, corresponding to at least a portion of a display screen, as an area for display of at least a portion of received radar information for at least one aircraft in the selected alternate display mode; and

third computer readable code means for causing the computer to display a radar plot of received radar information of at least one aircraft in the designated area of the display screen.

36. The article of manufacture of claim 35, wherein the computer receives aircraft identifying data identifying at least one aircraft with the received radar information, and the article of manufacture further includes,

fourth computer readable code means for causing the computer to assign a symbol to at least one identified aircraft, prior to display caused by the third computer readable code means and based upon corresponding aircraft identifying data received, wherein the third computer readable code means causes the computer to display the assigned symbol with the corresponding radar plot for at least one aircraft.

37. The article of manufacture of claim 36, wherein the fourth computer readable code means causes the computer to assign a color to at least one radar plot, prior to display caused by the third computer readable code means and based upon corresponding aircraft identifying data received, and wherein the third computer readable code means causes the computer to display at least one of the corresponding aircraft identifying data and corresponding radar plot in the assigned color.

38. The article of manufacture of claim 36, wherein the computer receives aircraft altitude data identifying the altitude of at least one aircraft with the received radar information, and wherein the third computer readable code means causes the computer to display the received aircraft altitude data with the assigned symbol of at least one corresponding radar plot.

39. The article of manufacture of claim 35, wherein the computer receives aircraft identifying data identifying at least one aircraft with the received radar information, and the article of manufacture further includes,

fourth computer readable code means for causing the computer to assign a symbol to at least one identified aircraft, prior to display caused by the third computer readable code means and based upon corresponding aircraft identifying data received, wherein the third computer readable code means causes the computer to display the assigned symbol as a corresponding radar plot for at least one aircraft.

40. The article of manufacture of claim 35, wherein the computer receives radar information from a plurality of independent radar stations, each at a different location, and the article of manufacture further includes,

fourth computer readable code means for causing the computer to receive a radar station selection, corresponding to at least one of the plurality of independent radar stations, wherein the third computer readable code means causes the computer to display a radar plot of radar information of at least one aircraft, received from only the selected radar station, in the designated area of the display screen.

41. The article of manufacture of claim 35, wherein the second computer readable code means causes the computer to receive a second designation, corresponding to a geographic region represented by the designated area of the display screen, and wherein the third computer readable code means causes the computer to display a radar plot of only received radar information within the designated geographic region, of at least one aircraft, in the designated area of the display screen.

42. The article of manufacture of claim 41, wherein the third computer readable code means causes the computer to display processed radar tracking information, for each aircraft for which received radar information is outside the designated geographic region, in an area of the display screen other than the designated area.