Top Banner
1 DAT/SEN April 21, 2006 Optimising Optimising Fighter Pilot Fighter Pilot Survivability Survivability Lars Rosenberg Randleff Lars Rosenberg Randleff Ph.D. student Ph.D. student Danish Defence Research Establishment Danish Defence Research Establishment
16

DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

Jan 16, 2016

Download

Documents

Annice Logan
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

1DAT/SENApril 21, 2006

Optimising Optimising Fighter Pilot Fighter Pilot SurvivabilitySurvivability

Lars Rosenberg RandleffLars Rosenberg Randleff

Ph.D. studentPh.D. student

Danish Defence Research EstablishmentDanish Defence Research Establishment

Page 2: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

2DAT/SENApril 21, 2006

Rationale

• Numbers of threats, guidance methods, and countermeasures are increasing• 650 missile systems developed• 200-300 missile systems currently deployed

(http://missile.index.ne.jp)

• Not easy to find the best action• Takes training to do it in time• Solution depends on mission

• “The worlds best pilot as the co-pilot”• A work in progress…

Page 3: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

3DAT/SENApril 21, 2006

Challenges

• Lack of information• Both in flight and in development

• Information may be self-contradictory• Onboard systems may be wrong

• Best solution depends on a lot of parameters• Avionics, route, scenario, inventory, …

• Should be found in real-time

Page 4: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

4DAT/SENApril 21, 2006

Missile Guidance

Semi-active Radar

Infrared

Electro-Optical

Active Radar

Track-Via-Missile

INS/GPS

Command

Beam Rider

Anti-Radiation

Page 5: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

5DAT/SENApril 21, 2006

Scenario

-0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

x 104

0

0.5

1

1.5

2

2.5

3

3.5

4x 10

4

Page 6: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

6DAT/SENApril 21, 2006

Parameters

α

ρ

Page 7: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

7DAT/SENApril 21, 2006

Lethality

-1 0 1 2 3 4 5

x 104

-0.5

0

0.5

1

1.5

2

2.5

3

3.5

4x 10

4

-1 0 1 2 3 4 5

x 104

-0.5

0

0.5

1

1.5

2

2.5

3

3.5

4x 10

4

0 50 100 150 200 250 300 350 400 450 5000

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

Scenario Lethality

Page 8: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

8DAT/SENApril 21, 2006

Countermeasures

• Jammer• Emits RF radiation• Very “loud”

• Towed Decoy• A towed jammer• Use once only• Limited resource

• Chaff• Forms a cloud with

a RCS comparable to that of the aircraft

• Limited resource

Page 9: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

9DAT/SENApril 21, 2006

Reduction of Lethality (α)

Page 10: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

10DAT/SENApril 21, 2006

Reduction of Lethality (ρ)

Page 11: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

11DAT/SENApril 21, 2006

Highest Reduction

-0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

x 104

0

0.5

1

1.5

2

2.5

3

3.5

4

x 104

None Jammer Chaff Decoy

Page 12: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

12DAT/SENApril 21, 2006

Building a Mathematical Model

tot

iii

iiii

N

iiitot

LS

RRR

MTRLTPL

1

)),,,(1()(

,,

1

n

ttprod

tt

best

n

ttsum

SS

SS

SS

0

0

}{max

Page 13: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

13DAT/SENApril 21, 2006

Decision Schedule

Jammer

Decoy

Chaff

Page 14: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

14DAT/SENApril 21, 2006

Changing Mode

Page 15: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

15DAT/SENApril 21, 2006

Other Constraints

• The towed decoy can be used a limited number of times (~3)

• Chaff can be dispensed a limited number of times (~30)

• No countermeasure should be chosen, if none is needed

Page 16: DAT/SEN April 21, 2006 1 Optimising Fighter Pilot Survivability Lars Rosenberg Randleff Ph.D. student Danish Defence Research Establishment.

16DAT/SENApril 21, 2006

Concluding Remarks

• Is it better to look ahead? How much?

• Can calculations be done fast enough? What should be the timeframe?

• Does uncertainty make a difference?