CN106292294A - Shipborne UAV auto landing on deck based on model reference self-adapting control controls device - Google Patents
Shipborne UAV auto landing on deck based on model reference self-adapting control controls device Download PDFInfo
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- 230000003044 adaptive effect Effects 0.000 claims abstract description 25
- 239000011159 matrix material Substances 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 14
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/08—Control of attitude, i.e. control of roll, pitch, or yaw
- G05D1/0808—Control of attitude, i.e. control of roll, pitch, or yaw specially adapted for aircraft
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/10—Simultaneous control of position or course in three dimensions
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Abstract
The invention discloses a kind of Shipborne UAV auto landing on deck based on model reference self-adapting control and control device, belong to aviation aircraft and control technical field.Apparatus of the present invention include: warship instruction and downslide reference trajectory generation module, for according to position relative with Shipborne UAV, naval vessel and absolute location information, generate three-dimensional downslide reference trajectory signal and speed command signal;Model reference adaptive flight control modules, model reference self-adapting control algorithm is utilized to generate the flight control signal of Shipborne UAV so that the practical flight track of Shipborne UAV and speed Tracking three-dimensional downslide reference trajectory signal and the speed command that warship instruction is generated with downslide reference trajectory generation module.This invention is applicable to fixed-wing people's carrier-borne aircraft and unmanned carrier-borne aircraft.Compared to existing technology, the present invention need not the calculating of leading law, controls warship more accurate, and control system is simpler, and realtime control is good.
Description
Technical field
The present invention relates to a kind of Shipborne UAV auto landing on deck based on model reference self-adapting control and control device, belong to
Aviation space flight controls technical field.
Background technology
" warship " in the present invention includes that runway blocks the landing approach such as warship, net collision recovery, in the principle of control method
On there is versatility.
Carrier-borne aircraft is as the important weapon strength of aircraft carrier, and its key technology is how to be guaranteed in very pacifying under rugged environment
The most accurate the warship.Owing to warship environment is very severe, unmanned plane all can warship product by the perturbation action such as mother ship carrier motion, stern air-flow
The biggest raw impact, be significantly greatly increased carrier-borne aircraft warship difficulty, had a strong impact on warship safety.Naval vessel rides the sea process
In, owing to being affected by wave, swell and wind, warship body will produce the deck of the forms such as pitching, driftage, rolling, dipping and heaving
Motion, cause on naval vessel warship point be Three Degree Of Freedom moving point, drastically influence difficulty and the safety of warship.Marine changeable
In the environment of, carrier-borne aircraft on naval vessel warship time, stern flow perturbation is also to affect its key factor warship performance.Marching into the arena
Warship section, with the reduction of flight speed, flying angle the most all can exceed the critical angle of attack, is in speed unstable region, makes guarantor
Hold flight path and become extremely difficult.Meanwhile, Shipborne UAV itself is a complicated control object, has non-linear, no
The characteristics such as definitiveness, multivariate, close coupling.The change of the interference of complex environment factor, flying height and state and modeling are by mistake
The factors such as difference together constitute the uncertain factor of Shipborne UAV System.
Current automated carrier landing system (ACLS), is generally made up of equipment on warship and airborne equipment two parts.Warship
Upper part has a tracking radar, stabilized platform, high-speed computer, display device, Data-Link coding/transmitter, Data-Link watch-dog,
Flight path monitor etc..Machine upper part has Data-Link receiver, receiver decoder, autopilot coupler, automatically flies
Control system, auto-throttle controller, radar booster etc..Auto landing on deck control method generally uses to be made TRAJECTORY CONTROL loop
For external loop, gesture stability loop and speed controlling as inner looping, TRAJECTORY CONTROL loop is based on track following control information, knot
Close deck motion prediction and compensated information, after tracking controller, generate attitude and speed command signal, be sent to flight control
System processed, flight control system demands follows the tracks of these command signals, to obtain desired track, attitude and speed, wherein inside and outside
The design of circuit controls rule is all based on conventional single-loop method for designing, such as PID control method.But, it is adaptable to unmanned plane
The application report that auto landing on deck system (ACLS) is not disclosed.
In summary, existing carrier-borne aircraft auto landing on deck controls technology and generally there is system complex, poor real, hardware
Seek high defect.
Summary of the invention
The technical problem to be solved is to overcome prior art not enough, it is provided that a kind of adaptive based on model reference
The Shipborne UAV auto landing on deck that should control controls device, it is not necessary to the calculating of leading law, warship more accurate, control system
Simpler, realtime control is good.
The present invention solves above-mentioned technical problem the most by the following technical solutions:
A kind of Shipborne UAV auto landing on deck based on model reference self-adapting control controls device, and this device includes:
Warship instruction and downslide reference trajectory generation module, for believing according to position relative with Shipborne UAV, naval vessel and absolute position
Breath, generates three-dimensional downslide reference trajectory signal and speed command signal;
Model reference adaptive flight control modules, utilizes model reference self-adapting control algorithm to generate Shipborne UAV
Flight control signal so that the practical flight track of Shipborne UAV and speed Tracking warship instruction and generated with downslide reference trajectory
Three-dimensional downslide reference trajectory signal that module is generated and speed command.
Preferably, in model reference adaptive flight control modules, for the name of reference model is controlled Matrix Estimation
ValueK2T () carries out the adaptive updates rule design in accordance with the following methods of online updating and obtains:
Orderω (t)=[Δ xT(t),ΔrT(t)]T, Δ r is reference-input signal, and Δ x is shape
State vector, then output tracking error
E (t)=Δ y (t)-Δ ym(t),
In formula, Δ y, Δ ymThe system of being respectively output, reference model output;
Defining new error signal is
ε (t)=ξm(s) h (s) [e] (t)+Ψ (t) ξ (t),
In formula, h (s)=1/f (s), f (s) are Stable Polynomials, and Ψ (t) is Ψ*=KpEstimated value, KpFor high-frequency gain
Matrix, ξmS () is the Interactive matrix of reference model, ξ (t)=ΘT(t)ζ(t)-h(s)[Δu](t);
Order
ζ (t)=h (s) [ω] (t)
The newest error signal is converted into
In formula,
Then, the adaptive updates rule controlling matrix parameter is designed as:
In formula, Γ=ΓT> 0, SpRepresent reversible permanent
Matrix.
Preferably, the input signal of model reference adaptive flight control modules includes: four longitudinal directions of Shipborne UAV
Quantity of state flight speed V, angle of attack α, pitch rate q, pitching angle theta;Five horizontal stroke lateral quantity of state sideslip angle betas, rollings
Corner speed p, yawrate r, roll angle φ, yaw angle ψ;The speed of warship instruction and the output of downslide reference trajectory generation module
Degree instruction VcAnd downslide reference trajectory signal XEATDc(t),YEATDc(t),ZEATDc(t);
The output signal of model reference adaptive flight control modules includes: accelerator open degree Δ δT, elevator drift angle Δ δe、
Aileron drift angle δa, rudder δr;
Flight Control Law in model reference adaptive flight control modules includes longitudinal and horizontal crabbing control law, logical
Cross following methods design to obtain:
The first step, based on following vertical linear model
Judge the relative order l of transfer function matrixi, i=1,2, calculate high-frequency gain matrix
Ensure as nonsingular;In formula, Alon、Blon、ClonThe vertical linear sytem matrix described for variable symbol, c1,lon、
c2,lonIt is respectively ClonThe 1st row and the 2nd row;
Second step, according to the relative order l of transfer function matrixi, i=1,2, choose Interactive matrixWherein p1i,p2iExpect limit for longitudinal system, thus design following reference model
Δym,lon(t)=Wm,lon(s)[Δrlon](t)
In formula, Δ rion(t)=[0, Δ HEATDc]T,
3rd step, calculates Longitudinal Flight Control Law
Wherein,K2,lonT () is the control matrix of online updating;
4th step, based on following horizontal lateral linear model
Judge the relative order l of transfer function matrixi, i=1,2, calculate high-frequency gain matrix
Ensure as nonsingular;In formula, Alat、Blat、ClatFor horizontal lateral linear sytem matrix, c1,lat、c2,latIt is respectively Clat
The 1st row and the 2nd row;
5th step, according to the relative order l of transfer function matrixi, i=1,2, choose Interactive matrixWherein p1i,p2iExpect limit for horizontal lateral system, thus design is following with reference to mould
Type
ym,lat(t)=Wm,lat(s)[rlat](t)
In formula, rlat(t)=[0, YEATDc]T,
6th step, calculates horizontal crabbing control law
Wherein,K2,latT () is the control matrix of online updating.
Preferably, warship instruction to include with the input signal of downslide reference trajectory generation module: naval vessel runway or glide path
Azimuth (ψS+λac), wherein ψSFor azimuth, naval vessel, λacFor angled deck angle;Warship instruction raw with downslide reference trajectory
The output signal becoming module includes: speed command VcAnd downslide reference trajectory signal XEATDc(t),YEATDc(t),ZEATDc(t)。
Further.Warship instruction and make formation speed instruction V using the following method with downslide reference trajectory generation modulecUnder and
Sliding reference trajectory signal XEATDc(t)、YEATDc(t)、ZEATDc(t):
After capture glide path, according to the known initial height-Z that glidesEA0, gliding angle γc, gliding speed Vc, calculate warship
Time
With glide path length
Then calculate with the three-dimensional downslide reference trajectory under preferable the warship point earth axes as initial point:
Compared to existing technology, the method have the advantages that
(1) present invention is according to position relative with Shipborne UAV, naval vessel and absolute location information, warship in line computation and refers to
Make signal, generate Shipborne UAV downslide reference trajectory, and control Shipborne UAV tracking benchmark rail by flight control system
Mark;Compared with prior art, it is possible to increase Shipborne UAV and the concertedness on naval vessel.
(2) present invention designs flight controller under Shipborne UAV model parameter and structure uncertain condition, from theory
The output signal of the output signal asymptotic tracking reference model of the upper uncertain linear system of guarantee model, and then tracking parameter is defeated
Enter signal, i.e. Shipborne UAV height, flight path and speed can follow the tracks of reference trajectory and speed, finally realize glide paths with
Track, thus can accurately complete warship task.Therefore, the present invention can control parameter by on-line control, have the strongest adaptive should be able to
Power and robust performance, and tradition auto landing on deck system uses classical control method to design, and relies on the accurate model of carrier-borne aircraft,
Adaptivity is lacked for systematic uncertainty and external disturbance.
(3) present invention does not has the calculating of leading law, and flight control system is directly adaptive by design by trajectory error
Control law is answered to be reduced or eliminated so that the design of flight control system becomes simpler.
Accompanying drawing explanation
Fig. 1 represents that present invention Shipborne UAV based on model reference self-adapting control auto landing on deck controls the principle of device
Block diagram;
Fig. 2 represent Shipborne UAV warship during height track following design sketch;
Fig. 3 represent Shipborne UAV warship during speed controlling design sketch;
In figure, solid line represents expected value curve, and dotted line represents actual value curve.
Detailed description of the invention
Below in conjunction with the accompanying drawings technical scheme is described in detail:
Present invention Shipborne UAV based on model reference self-adapting control auto landing on deck controls principle such as Fig. 1 institute of device
Showing, it is made up of with downslide reference trajectory generation module, adaptive flight control system module two parts warship instruction.
Warship instruction and downslide reference trajectory generation module
The input signal of this module includes: the azimuth (ψ of naval vessel runway or glide pathS+λac), wherein ψSFor orientation, naval vessel
Angle, λacFor angled deck angle.
The output signal of this module includes three-dimensional downslide reference trajectory signal XEATDc(t),YEATDc(t),ZEATDc(t) and speed
Degree command signal Vc.Wherein, downslide reference trajectory signal, speed command signal export to adaptive flight control system module.
The first step, carrier-borne aircraft capture glide path, it is known that initially glide height-ZEA0, gliding angle γc, gliding speed Vc, calculate
The warship time
With glide path length
Second step, calculates with the three-dimensional downslide reference trajectory under preferable the warship point earth axes as initial point
Model reference adaptive flight control modules
The input signal of this module includes: the longitudinal quantity of state x=of the Shipborne UAV of sensor feedback four (V, α, β, p,
q,r,φ,θ,ψ,X,Y,H)TFlight speed V, angle of attack α, pitch rate q, pitching angle theta;Five horizontal strokes of sensor feedback
Lateral quantity of state sideslip angle beta, roll angle speed p, yawrate r, roll angle φ, yaw angle ψ;Warship instruction and glide
The speed command V of reference trajectory generation module outputc, downslide reference trajectory signal XEATDc(t),YEATDc(t),ZEATDc(t)。
The output signal of this module includes: accelerator open degree Δ δT, elevator drift angle Δ δe, aileron drift angle δa, rudder
δr.It is sent to actuator, thus controls carrier-borne aircraft flight.
Detailed process is: first calculate Longitudinal Flight Control Law (first, second and third step), secondly calculates horizontal crabbing control
System rule (fourth, fifth, six steps).
The first step, based on following vertical linear model
Judge the relative order l of transfer function matrixi, i=1,2, calculate high-frequency gain matrix
Ensure as nonsingular.In formula, Alon、Blon、ClonThe vertical linear sytem matrix described for variable symbol, c1,lon、
c2,lonIt is respectively ClonThe 1st row and the 2nd row.
Second step, according to the relative order l of transfer function matrixi, i=1,2, choose Interactive matrixWherein p1i,p2iExpect limit for longitudinal system, thus design following reference model
Δym,lon(t)=Wm,lon(s)[Δrlon](t) (7)
In formula, Δ rlon(t)=[0, Δ HEATDc]T,
3rd step, calculates Longitudinal Flight Control Law
Wherein,K2,lonT (), for controlling matrix, carries out online updating according to reference model adaptive control algorithm.
4th step, based on following horizontal lateral linear model
Judge the relative order l of transfer function matrixi, i=1,2, calculate high-frequency gain matrix
Ensure as nonsingular.In formula, Alat、Blat、ClatFor horizontal lateral linear sytem matrix, c1,lat、c2,latIt is respectively Clat
The 1st row and the 2nd row.
5th step, according to the relative order l of transfer function matrixi, i=1,2, choose Interactive matrixWherein p1i,p2iExpect limit for horizontal lateral system, thus design is following with reference to mould
Type
ym,lat(t)=Wm,lat(s)[rlat](t) (6)
In formula, rlat(t)=[0, YEATDc]T,
6th step, calculates horizontal crabbing control law
Wherein,K2,latT (), for controlling matrix, carries out online updating according to reference model adaptive control algorithm.
Model reference self-adapting control algorithm
For following linear system
In formula, Δ x is state vector, and Δ u is dominant vector, and Δ y is output vector, and A, B, C are sytem matrix.
Structure reference model is
In formula, ξmS () is Interactive matrix.
The purpose controlled is the output Δ y of desirable system output Δ y track reference modelm, therefore build control law structure
For
In formula, Δ r is reference-input signal,K2T () is that name controls matrixEstimated value.
Control matrix in the case of model parameter is completely known, in design name control lawMeet as follows
Equality condition
Then ensure that the output Δ y of system output Δ y perfect tracking reference modelm.But, model parameter is uncertain
Under situation, it is impossible to obtain name and control matrixTherefore estimated value can only be usedK2T () substitutes, estimated value needs profit
Online updating is carried out by following adaptive algorithm.
Orderω (t)=[Δ xT(t),ΔrT(t)]T, then output tracking error
E (t)=Δ y (t)-Δ ym(t) (18)
Defining new error signal is
ε (t)=ξm(s)h(s)[e](t)+Ψ(t)ξ(t) (19)
In formula, h (s)=1/f (s), f (s) are Stable Polynomials, and Ψ (t) is Ψ*=KpEstimated value.
Order
ζ (t)=h (s) [ω] (t), ξ (t)=ΘT(t)ζ(t)-h(s)[Δu](t) (11)
The newest error signal is converted into
In formula,
Then, the adaptive updates rule controlling matrix parameter is designed as
In formula, Γ=ΓT> 0,
Correlation theory according to multivariate reference model adaptive control algorithm principle proves, it is known that this algorithm ensure that
The boundedness of each variable of linear system, output can the output of asymptotic tracking reference model.
In order to verify that the Shipborne UAV auto landing on deck that the present invention proposes controls device effect, move with the longitudinal direction of certain unmanned plane
As a example by mechanics and kinematics model, adding deck motion compensation last 10 second moment in reference trajectory, main simulation parameter sets
Put such as table 1 below:
Table 1
Being verified by the numerical simulation under MATLAB software platform, result shows invented Shipborne UAV auto landing on deck
Controlling device can make Shipborne UAV follow the tracks of downslide reference trajectory accurately, thus successfully completes warship task.
Claims (5)
1. a Shipborne UAV auto landing on deck based on model reference self-adapting control controls device, it is characterised in that this dress
Put and include: warship instruction and downslide reference trajectory generation module, for according to position relative with Shipborne UAV, naval vessel and exhausted
To positional information, generate three-dimensional downslide reference trajectory signal and speed command signal;
Model reference adaptive flight control modules, utilizes model reference self-adapting control algorithm to generate the flight of Shipborne UAV
Control signal so that the practical flight track of Shipborne UAV and speed Tracking warship instruction and downslide reference trajectory generation module
The three-dimensional downslide reference trajectory signal generated and speed command.
2. Shipborne UAV auto landing on deck controls device as claimed in claim 1, it is characterised in that model reference adaptive flies
In control module, for the name of reference model is controlled Matrix Estimation valueK2T () carries out the self adaptation of online updating more
New law designs in accordance with the following methods and obtains:
Orderω (t)=[Δ xT(t),ΔrT(t)]T, Δ r is reference-input signal, Δ x be state to
Amount, then output tracking error
E (t)=Δ y (t)-Δ ym(t),
In formula, Δ y, Δ ymThe system of being respectively output, reference model output;
Defining new error signal is
ε (t)=ξm(s) h (s) [e] (t)+Ψ (t) ξ (t),
In formula, h (s)=1/f (s), f (s) are Stable Polynomials, and Ψ (t) is Ψ*=KpEstimated value, KpFor high-frequency gain square
Battle array, ξmS () is the Interactive matrix of reference model, ξ (t)=ΘT(t)ζ(t)-h(s)[Δu](t);
Order
ζ (t)=h (s) [ω] (t),
The newest error signal is converted into
In formula,
Then, the adaptive updates rule controlling matrix parameter is designed as:
In formula, Γ=ΓT> 0,SpFor reversible permanent matrix.
3. Shipborne UAV auto landing on deck controls device as claimed in claim 1, it is characterised in that model reference adaptive flies
The input signal of control module includes: four longitudinal quantity of state flight speeds V of Shipborne UAV, angle of attack α, angle of pitch speed
Rate q, pitching angle theta;Five horizontal stroke lateral quantity of state sideslip angle betas, roll angle speed p, yawrate r, roll angle φ, driftages
Angle ψ;The speed command V of warship instruction and the output of downslide reference trajectory generation modulecAnd downslide reference trajectory signal XEATDc(t),
YEATDc(t),ZEATDc(t);
The output signal of model reference adaptive flight control modules includes: accelerator open degree Δ δT, elevator drift angle Δ δe, aileron
Drift angle δa, rudder δr;
Flight Control Law in model reference adaptive flight control modules includes longitudinal and horizontal crabbing control law, by with
Lower method is designed to:
The first step, based on following vertical linear model
Judge the relative order l of transfer function matrixi, i=1,2, calculate high-frequency gain matrix
Ensure as nonsingular;In formula, Alon、Blon、ClonThe vertical linear sytem matrix described for variable symbol, c1,lon、c2,lonPoint
Wei ClonThe 1st row and the 2nd row;
Second step, according to the relative order l of transfer function matrixi, i=1,2, choose Interactive matrix
Wherein p1i,p2iExpect limit for longitudinal system, thus design following reference model
Δym,lon(t)=Wm,lon(s)[Δrlon](t)
In formula, Δ rlon(t)=[0, Δ HEATDc]T,
3rd step, calculates Longitudinal Flight Control Law
Wherein,K2,lonT () is the control matrix of online updating;
4th step, based on following horizontal lateral linear model
Judge the relative order l of transfer function matrixi, i=1,2, calculate high-frequency gain matrix
Ensure as nonsingular;In formula, Alat、Blat、ClatFor horizontal lateral linear sytem matrix, c1,lat、c2,latIt is respectively ClatThe 1st
Row and the 2nd row;
5th step, according to the relative order l of transfer function matrixi, i=1,2, choose Interactive matrixWherein p1i,p2iExpect limit for horizontal lateral system, thus design is following with reference to mould
Type
ym,lat(t)=Wm,lat(s)[rlat](t)
In formula, rlat(t)=[0, YEATDc]T,
6th step, calculates horizontal crabbing control law
Wherein,K2,latT () is the control matrix of online updating.
4. Shipborne UAV auto landing on deck controls device as claimed in claim 1, it is characterised in that warship instruction and downslide benchmark
The input signal of Track Pick-up module includes: the azimuth (ψ of naval vessel runway or glide pathS+λac), wherein ψSFor orientation, naval vessel
Angle, λacFor angled deck angle;Warship instruction to include with the output signal of downslide reference trajectory generation module: speed command VcAnd
Downslide reference trajectory signal XEATDc(t),YEATDc(t),ZEATDc(t)。
5. Shipborne UAV auto landing on deck controls device as claimed in claim 4, it is characterised in that warship instruction and downslide benchmark
Track Pick-up module makes formation speed instruction V using the following methodcAnd downslide reference trajectory signal XEATDc(t)、YEATDc(t)、ZEATDc
(t):
After capture glide path, according to the known initial height-Z that glidesEA0, gliding angle γc, gliding speed Vc, calculate the warship time
With glide path length
Then calculate with the three-dimensional downslide reference trajectory under preferable the warship point earth axes as initial point:
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Cited By (10)
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CN107491083A (en) * | 2017-09-11 | 2017-12-19 | 北京航空航天大学 | A kind of four rotors based on saturation adaptive sliding-mode observer it is autonomous ship's method |
CN108919824A (en) * | 2018-07-20 | 2018-11-30 | 中国人民解放军海军航空大学 | Shipborne UAV it is longitudinal warship control method |
CN110249281A (en) * | 2017-02-10 | 2019-09-17 | 深圳市大疆创新科技有限公司 | Position processing unit, flying body, position processing system, flight system, position processing method, flight control method, program and recording medium |
CN110703799A (en) * | 2019-10-28 | 2020-01-17 | 大连理工大学 | Multi-carrier-based aircraft cooperative deck surface sliding track planning method based on centralized optimal control |
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