7/28/2019 Infrared Guidence
1/25
7/28/2019 Infrared Guidence
2/25
The air to air missile grew out of the unguidedair to air rockets used during 1st World War.
The US Navy and US Air Force began
equipping guided missiles in 1956. Development of these missiles are classified
into 5 generations.
The latest heat seeking designs can lock on totarget from various angles not just from behindwhere the heat signature from the engine isstrongest.
7/28/2019 Infrared Guidence
3/25
Guided missiles are self propelled airborneprojectiles carrying a explosive charge andguided flight towards a target.
Missiles are broadly classified based on thelaunch environment and type of guidanceused.
Discover how a missile launched from anairborne aircraft attacks with precision to wipeout an enemy aircraft.
7/28/2019 Infrared Guidence
4/25
An air to air missile has various parts asshown below
7/28/2019 Infrared Guidence
5/25
The missile is fixed to a launcher which ismounted on the aircraft wings.
When the target is locked , the pilot gives the
fire command and the rocket motor isactivated.
The rocket motor burns up a solid propellantwhich gives the thrust to the missile to glide inthe air.
The fins, wings and the guidance controlsystem controls the missile course.
7/28/2019 Infrared Guidence
6/25
7/28/2019 Infrared Guidence
7/25
Semi-Active Radar Homing
7/28/2019 Infrared Guidence
8/25
Active Radar Homing
7/28/2019 Infrared Guidence
9/25
Infrared Homing
7/28/2019 Infrared Guidence
10/25
7/28/2019 Infrared Guidence
11/25
7/28/2019 Infrared Guidence
12/25
The guidance system helps the missile toachieve its target.
The guidance system works with the help of
target seeker which gives 3 parameters Position information
Speed information
Distance information
The target seeker consist of infrared sensorsplaced n the nose of the missile in circularmatrix arrangement which gives the above 3parameters.
7/28/2019 Infrared Guidence
13/25
Position Information
The infrared image falls exactly on the center of thenose of the missile.
The position of the target is acquired by calculating theamount of IR radiation falling on the IR sensor matrix.
7/28/2019 Infrared Guidence
14/25
Speed Information The speed of the target is estimated by measuring the
time interval between the IR radiation pulses that falls
on the sensors.
Distance Information The distance is measured based on the characteristics
that the strength of the IR signals diminishes as the
distance increases.
7/28/2019 Infrared Guidence
15/25
7/28/2019 Infrared Guidence
16/25
Used in Defense and Warfare
Semi Active Radar Homing Missiles
Aim-7 Sparrow
7/28/2019 Infrared Guidence
17/25
Active Radar Homing Missiles
Indias DRDO-AstraBVRAAM
USAs
BoeingHarpoon
7/28/2019 Infrared Guidence
18/25
Infrared Homing Missiles
German Luftwaffe IRIS-T
Britains AIM-132ASRAAM
7/28/2019 Infrared Guidence
19/25
Greater range and ability to identify smaller
low flying targets like Unmanned aerial vehicle More accuracy
More reliable
7/28/2019 Infrared Guidence
20/25
It can easily evaded by flares
7/28/2019 Infrared Guidence
21/25
Missiles that are able to distinguish aircraftfrom Infrared countermeasures such as flares
Missiles with more detailed target image
allows targeting of more vulnerable parts of theaircraft instead of just homing in on thebrightest infrared source
7/28/2019 Infrared Guidence
22/25
IR missiles are highly decisive
Man portable air defense system also use theseIR missiles
These missiles are also used by the terroristgroups and pose a serious threat to thecommercial airlines
7/28/2019 Infrared Guidence
23/25
wikipedia.org
aerospaceweb.org
www.brahmos.com
www.defence.pk
7/28/2019 Infrared Guidence
24/25
7/28/2019 Infrared Guidence
25/25