CN103644916B - A kind of Route planner of stealth aircraft - Google Patents
A kind of Route planner of stealth aircraft Download PDFInfo
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- CN103644916B CN103644916B CN201310612026.7A CN201310612026A CN103644916B CN 103644916 B CN103644916 B CN 103644916B CN 201310612026 A CN201310612026 A CN 201310612026A CN 103644916 B CN103644916 B CN 103644916B
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- 239000002131 composite material Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/20—Instruments for performing navigational calculations
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Abstract
The present invention relates to a kind of Route planner of stealth aircraft, particularly one has a kind of Route planner of the invisbile plane of variable RC S (radar emission area) characteristic.1) first the three-dimensional RCS of aircraft is analyzed, find out RCS and there is each incident direction minimizing, in this, as allowing the direction aiming at enemy radar during aircraft flight; 2) then, according to the kinetic characteristic of aircraft, these incident directions are divided into groups, under finding out all directions, aircraft this continue to do which kind of motion, guarantee aircraft can continue to keep minimum RCS, in this, as the most applicable prominent anti-direction, air route; 3) under the current position of aircraft and attitude, if aircraft is through of short duration motor-driven, can 2 be switched to) in the direction, certain air route that filters out, then this direction, air route is suitable prominent anti-direction.If can not, then find the air route that guarantee as far as possible realizes most important threat (nearest radar, the radar that ability is the strongest) effectively evading.
Description
Technical field
The present invention relates to a kind of Route planner of stealth aircraft, there is a kind of Route planner of the invisbile plane of variable RC S (radar emission area) characteristic, the Route planner utilizing aircraft RCS geometric properties especially under hard real-time constraint in particular to one.
Background technology
Invisbile plane has different RCS with the angle difference of incident radar wave.Stealthy prominent anti-ultimate principle, is exactly in aircraft flight, tries one's best less RCS in the face of accurate radar.Existing Route planner is all be need optimised amount the angle parameter augmentation of aircraft, utilizes optimized algorithm or searching algorithm to solve.Like this, can invisbile plane routeing problem in three dimensions, be converted to the search of three attitude angle to the some position of invisbile plane in three dimensions and this some place.This can cause the space dimensionality to be planned of routeing by 3 dimension augmentation to 6 dimensions, and the calculated amount of algorithm increases greatly, and the real-time routeing under airborne Limited computational resources calculates and is difficult to realize.
Summary of the invention
In order to overcome above-mentioned defect, the object of the invention is the Route planner providing a kind of stealth aircraft, the method is under the constraint of a kind of hard real-time, in three dimensions, based on the Route planner of the three-dimensional RCS geometric properties of invisbile plane, with under realizing aerial presence, the routeing that utilizes airborne computing platform to carry out fast.
To achieve these goals, the present invention adopts following technical scheme:
1, a Route planner for stealth aircraft, comprises the steps:
1) first the three-dimensional RCS of aircraft is analyzed, find out RCS and there is each incident direction minimizing, in this, as allowing the direction aiming at enemy radar during aircraft flight;
2) then, according to the kinetic characteristic of aircraft, these incident directions are divided into groups, under finding out all directions, aircraft this continue to do which kind of motion, guarantee aircraft can continue to keep minimum RCS, in this, as the most applicable prominent anti-direction, air route;
3) under the current position of aircraft and attitude, if aircraft is through of short duration motor-driven, can 2 be switched to) in the direction, certain air route that filters out, then this direction, air route is suitable prominent anti-direction.If can not, then find the air route that guarantee as far as possible realizes most important threat (nearest radar, the radar that ability is the strongest) effectively evading;
Concrete criteria for planning is as follows:
A, adopt minimum RCS method to any one radar
r a evade and be divided into two prominent anti-directions, produce two prominent anti-criterions thus:
I. criterion 1: along mistake
r a radial direction, deal head-on blows, or turn around to run away;
Ii. criterion 2: along mistake
r a radial direction, carry out banked turn;
B, adopt minimum RCS method to any pair radar
r a ,
r b evade, be divided into two prominent anti-directions, produce two prominent anti-criterions thus:
I. criterion 3: along mistake
r a ,
r b the plane of line, is parallel to
r a ,
r b line flies, and most typical action was that the vertical plane of this line deals head-on blows, or turned around to run away;
Ii. criterion 4: along mistake
r a ,
r b the middle vertical plane of line, is controlling well under the condition of height, is ensureing that the minimum RCS of bilateral just in time can aim at two radars simultaneously;
C, adopt minimum RCS method evading 2n+1 radar, be divided into two prominent anti-directions, produce two prominent anti-criterions thus:
Iii. criterion 5: certain direction can successfully be dashed forward anti-for wherein 2n radar, if this direction is in the radial direction of 2n+1 radar, then this direction also can successfully realize prominent anti-to 2n+1 radar, thus realizes preventing dashing forward of all radars;
Iv. criterion 6: if other radar is all apart from distant, then mainly consider from its one group of nearest radar in the prominent anti-process of aircraft.
Beneficial effect of the present invention:
The present invention can ensure invisbile plane meet with suddenly serious threat condition aloft under timely reaction capacity, avoid the problem that cannot restrain in time that the computing that iterates of classic method causes.Thus improve the application in actual combat ability of invisbile plane.
Accompanying drawing explanation
Fig. 1 is the three-dimensional RCS analogous diagram of the present invention typical case invisbile plane and minimum RCS incident direction vertical view.
Fig. 2 is the three-dimensional RCS analogous diagram of the present invention typical case invisbile plane and minimum RCS incident direction side view.
Fig. 3 is that the three-dimensional RCS analogous diagram of the present invention typical case invisbile plane and minimum RCS incident direction head on view.
Fig. 4 be the scheme that deals head-on blows under the single threat radar of the present invention deal air route diagrammatic side view head-on blows.
Fig. 5 be the scheme that deals head-on blows under the single threat radar of the present invention deal air route diagrammatic top view head-on blows.
Fig. 6 is the air route diagrammatic side view of runing away straight of the scheme that deals head-on blows under the single threat radar of the present invention.
Fig. 7 is the air route diagrammatic top view of runing away straight of the scheme that deals head-on blows under the single threat radar of the present invention.
Fig. 8 is that the invasion under dual radars networking condition of the present invention deals air route diagrammatic side view head-on blows.
Fig. 9 is that the invasion under dual radars networking condition of the present invention deals air route diagrammatic top view head-on blows.
Figure 10 is that side coil under multi-radar network condition of the present invention is run away schematic diagram straight.
Figure 11 is the inclination left-hand bend schematic diagram under the single threat radar of the present invention.
Figure 12 is the inclination right-hand bend schematic diagram under the single threat radar of the present invention.
Figure 13 is that the present invention utilizes banked turn to realize switching schematic diagram to the direction of runing away straight.
Figure 14 is that schematic diagram evaded by the radar that the present invention utilizes four rightabout banked turns to realize in craspedodrome process.
Figure 15 is that breakthrough placed in the middle under the present invention's two radar network composites heads on view.
Figure 16 is the breakthrough vertical view placed in the middle under the present invention's two radar network composites.
Figure 17 is the tactical application that the present invention breaks out of an encirclement between two parties.
Embodiment
Below in conjunction with accompanying drawing 1 ~ 17, the present invention is described in detail:
A Route planner for stealth aircraft, comprises the steps:
According to the RCS geometric properties of Fig. 1,2,3 invisbile planes provided, the routeing pattern of this invention correspondence has: deal head-on blows and run away straight, tilt to turn round and break out of an encirclement between two parties two classes.As shown in Fig. 4 ~ 17.
1) first the three-dimensional RCS of aircraft is analyzed, find out RCS and there is each incident direction minimizing, in this, as allowing the direction aiming at enemy radar during aircraft flight;
2) then, according to the kinetic characteristic of aircraft, these incident directions are divided into groups, under finding out all directions, aircraft this continue to do which kind of motion, guarantee aircraft can continue to keep minimum RCS, in this, as the most applicable prominent anti-direction, air route;
3) under the current position of aircraft and attitude, if aircraft is through of short duration motor-driven, can 2 be switched to) in the direction, certain air route that filters out, then this direction, air route is suitable prominent anti-direction.If can not, then find the air route that guarantee as far as possible realizes most important threat (nearest radar, the radar that ability is the strongest) effectively evading;
Below said process is concluded further, can find to adopt minimum RCS method to any one radar
r a evade and be divided into two prominent anti-directions.Produce two prominent anti-criterions thus:
I.
criterion 1: along mistake
r a radial direction, deal head-on blows, or turn around to run away.As Fig. 4,5,6,7.
Ii.
criterion 2: along mistake
r a radial direction, carry out banked turn, as Figure 11,12,13,14.
Adopt minimum RCS method to any pair radar
r a ,
r b evade, be divided into two prominent anti-directions.Produce two prominent anti-criterions thus:
I.
criterion 3: along mistake
r a ,
r b the plane of line, is parallel to
r a ,
r b line flies.Most typical action was that the vertical plane of this line deals head-on blows, or turned around to run away.As Fig. 8,9.
Ii.
criterion 4: along mistake
r a ,
r b the middle vertical plane of line, is controlling well under the condition of height, is ensureing that the minimum RCS of bilateral just in time can aim at two radars simultaneously.As Figure 15,16.
Any many radars of present consideration
r 1,
r i ,
r j ,
rn, to wherein any pair radar
r i ,
r j , have above-mentioned two prominent anti-directions, name these two prominent anti-directions to be
p ij,
q ij, and set up set
u ij=
pij,
qij}.It is easy to show that, if having common element, then the prominent anti-direction that this element is corresponding for the feasible prominent anti-direction set of any pair radar in radar network, can upper guarantee prevent the prominent of all radars to greatest extent.
To said process, two other criterion can also be augmented.
Iii.
criterion 5: if having 2n+1 radar, certain direction can successfully be dashed forward anti-for wherein 2n radar, if this direction is in the radial direction of 2n+1 radar, then this direction also can successfully realize prominent anti-to 2n+1 radar, thus realizes preventing dashing forward of all radars.Typical apply is as Figure 10.
Iv.
criterion 6: if other radar all apart from distant, is then mainly considered from its one group of nearest radar in the prominent anti-process of aircraft.This is similar to the leading pole method in control system analysis.Typical apply is as Figure 17.
Claims (1)
1. a Route planner for stealth aircraft, is characterized in that comprising the steps:
1) first the three-dimensional RCS of aircraft is analyzed, find out RCS and there is each incident direction minimizing, in this, as allowing the direction aiming at enemy radar during aircraft flight;
2) then, according to the kinetic characteristic of aircraft, these incident directions are divided into groups, under finding out all directions, aircraft this continue to do which kind of motion, guarantee aircraft can continue to keep minimum RCS, in this, as the most applicable prominent anti-direction, air route;
3) under the current position of aircraft and attitude, if aircraft is through of short duration motor-driven, can 2 be switched to) in the direction, certain air route that filters out, then this direction, air route is suitable prominent anti-direction;
If can not, then find and ensure most important threat as far as possible: nearest radar, the radar that ability is the strongest, realize the air route of effectively evading;
Concrete criteria for planning is as follows:
A, adopt minimum RCS method to be divided into two prominent anti-directions to evading of any one radar RA, produce two prominent anti-criterions thus:
I. criterion 1: along the radial direction crossing RA, deal head-on blows, or turn around to run away;
Ii. criterion 2: along the radial direction crossing RA, carry out banked turn;
B, adopt minimum RCS method evading any pair radar RA, RB, be divided into two prominent anti-directions, produce two prominent anti-criterions thus:
I. criterion 3: along the plane crossing RA, RB line, be parallel to the flight of RA, RB line, its action was that the vertical plane of this line deals head-on blows, or turned around to run away;
Ii. criterion 4: along the middle vertical plane crossing RA, RB line, is controlling well under the condition of height, is ensureing that the minimum RCS of bilateral just in time can aim at two radars simultaneously;
C, adopt minimum RCS method evading 2n+1 radar, be divided into two prominent anti-directions, produce two prominent anti-criterions thus:
Iii. criterion 5: certain direction can successfully be dashed forward anti-for wherein 2n radar, if this direction is in the radial direction of 2n+1 radar, then this direction also can successfully realize prominent anti-to 2n+1 radar, thus realizes preventing dashing forward of all radars;
Iv. criterion 6: if other radar is all apart from distant, then mainly consider from its one group of nearest radar in the prominent anti-process of aircraft.
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| CN201310612026.7A CN103644916B (en) | 2013-11-28 | 2013-11-28 | A kind of Route planner of stealth aircraft |
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| CN103644916B true CN103644916B (en) | 2016-01-06 |
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| CN102928829A (en) * | 2012-12-04 | 2013-02-13 | 上海无线电设备研究所 | Space target parameter tetrieval method |
-
2013
- 2013-11-28 CN CN201310612026.7A patent/CN103644916B/en active Active
Patent Citations (5)
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| FR2945622A1 (en) * | 2009-05-15 | 2010-11-19 | Thales Sa | METHOD FOR SHORT TERM JOINING A RADAR GUIDED FLIGHT PLAN OF AN AIRCRAFT |
| CN101893441A (en) * | 2010-06-13 | 2010-11-24 | 南京航空航天大学 | UAV Track Optimization Method Based on Deviation Maximization and Gray Relational Analysis |
| CN102455185A (en) * | 2010-10-20 | 2012-05-16 | 关鸿亮 | Air route planning method for airborne synthetic aperture radar |
| CN102506863A (en) * | 2011-11-07 | 2012-06-20 | 北京航空航天大学 | Universal gravitation search-based unmanned plane air route planning method |
| CN102928829A (en) * | 2012-12-04 | 2013-02-13 | 上海无线电设备研究所 | Space target parameter tetrieval method |
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