2005 aoc - evaluating airliner manpads protection
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8/13/2019 2005 Aoc - Evaluating Airliner Manpads Protection
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Tactical Technologies Inc., All Rights Reserved 19/15/2009
Evaluating Airliner MANPADS Protection
Dr. T.W. TuckerTactical Technologies Inc.
356 Woodroffe Ave.
Ottawa, Ontario, K2A 3V6
Tel: (613) 828-0775, e-mail: twt@tti.on.ca URL: www.tti.on.ca
42nd Annual AOC International Symposium
Virginia Beach, October 26, 2005
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Outline
l Engagement Characterization
l MANPADS Characteristics
l DIRCM Modulation For Success
l DIRCM vs MANPADS Simulations
l Flares vs MANPADS Simulations
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Engagement Characterization
l Threat Weapon: Guidance and Dynamics
l Target Platform: Signature and Maneuver
l Countermeasures: Techniques and Tacticsl Propagation: Attenuation vs Wavelength
l Background Clutter
l Engagement Geometryl Simulation Involves About 250 Parameters
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Engagement Scenarios
l Wide Body Aircraft– Four Engines
– In Take-off, Climbing at 100
– Speed 100 m/sec,– AC Altitude at Missile Launch: 400 m
l Missile Launch
– Launch Range 1.4 Km– Terminal Velocity 600 m/s
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MANPADS Characteristics
Threat Wave Band
(microns)
Tracking
Technique
Reference
SA-7
Grail
1.9-2.8
(uncooled)
Spin Scan
(Amplitude)
Fiszer et al, JED, Jan 04
Zaloga, Janes Pub, 1988
SA-14Gremlin
1.9-4.1(cooled)
Con Scan(Frequency)
Fiszer et al, JED, Jan 04http://encyclopedia.thefreedictionary.com/SA-14
SA-16
Gimlet
2-3 & 3-5
(two colour
discrimination)
Con Scan?
(Frequency)
OPFOR Battle Book, Mar 98,
Ch 3
SA-18
Grouse
2-3 & 3-5
(ECCM - colourdiscrimination)
Rosette? Grossman et al, Rand Study,#1713
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Spin Scan Tracker
Graphics: “Test And Evaluation Of The Tactical Missile” By E.J. Eichblatt
Counter-Phase ECM Amplitude Modulation Causes Angle Error
Sweeping ECM AM Frequency Can Ensure Counter-Phasing
Spinning Reticle
Target Detection and Tracking
Relative Phase Determines Target Angle
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Swept AM vs Spin Scan
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Swept AM vs Spin Scan Effectiveness
Average Miss Distance (m)
0.0
20.0
40.0
60.0
80.0
100.0
120.0
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Swept AM vs Spin Scan Miss Distance Dependence on Missile Launch Range
(In The Tail Chase Geometry)
Miss Distance Depends Somewhat on Launch Range (ie Relative AM and Spin Scan Phase)
Swept AM vs Spin Scan
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
1200 1250 1300 1350 1400
Missile Launch Range (m)
M i s s i l e M i s s D i s t a n c e ( m )
Miss Distance:
Average = 57.9 m
Last Mode:100% In Search
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Typical Rosette Scans: Multiple Spinning Optics
Graphic: “The Infra-Red Handbook” Edited By W.L Wolfe And G.J. Zessis
l Track While Scan
l Spatial Sampling
l
Quasi-Imagingl Digital Tracking
l Generation OfDeceptive AM vsDigital Track IsDifficult
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Swept AM vs Rosette Engagement
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Rosette AM Deception Analysis
Sample RosetteCharacteristics
l Two Counter-Rotating Mirrors
l Rotation Rates =15 & 27 Hz
l Petal Frequency = 42 Hz
l Rosette Frequency = 3 Hz
l Number of Petals = 14
l Sequence As Shown At Left
1
2
3
41
2
3
4
7
1013
5
8
11
14
6
9
12
5
6
7
8
9
10
11
12
13
14
15
Sample AM ECM
Characteristicsl AM Center Frequency = 43.5 Hz
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Angle Error vs AM Frequency
-1.000
-0.500
0.000
0.500
1.000
0 0.2 0.4 0.6 0.8 1
-1.000
-0.500
0.000
0.500
1.000
0 0.2 0.4 0.6 0.8 1
-1.000
-0.500
0.000
0.500
1.000
0 0.2 0.4 0.6 0.8 1
42.0 Hz
43.5 Hz
45.0 Hz
6.9% Sweep
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Swept AM (6.9%) vs Rosette Miss Distance Dependence on Missile Launch Range
(In The Tail Chase Geometry)
Miss Distance Depends Substantially on Launch Range (ie Relative AM and Rosette Phase)
Swept AM vs Rosette
-20.0
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
160.0
1200 1250 1300 1350 1400
Missile Launch Range (m)
M i s s i l e M i s s D i s t a n c e ( m )
Miss Distance:
Average = 27.5 m
Last Mode:50% In Search
OutboardInboard
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Swept AM (6.9%) vs Rosette Effectiveness
Average Missile Miss Distance (m)
0.0
100.0
200.0
300.0
400.0
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Average Missile Miss Distance (m)
0.0
50.0
100.0
150.0
200.0
250.0
300.0
350.0
Swept AM (2.3%) vs Rosette Effectiveness
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Flares vs Rosette Engagement
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Flares vs Rosette Effectiveness
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Flares vs Spin Scan Effectiveness
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Airliner Self Protection
l On-Board (DIRCM)– Modulation’s Success
Depends on Threat’sTracking Technique
– Requires ThreatAnalysis Capabilities
l Defeat of AdvancedTrackers May Be
Difficult if DIRCMPower Is Not Sufficientto Cause Damage
l Off-Board (Flares)– Deployment Sequence
Relative to End Game(Timing) Is Important
For Success– Success Is Engagement
Geometry Dependent
l Success Is Relatively
Independent OfThreat’s TrackingTechnique
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Questions???
Evaluating Airliner MANPADS Protection
Tactical Technologies Inc.
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