Presented by:
ANTONY VARGHESE

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BOMB ?
explosive
case
fuze time-delay system
target-proximity sensor
impact sensor
dumb bomb smart bomb
DUMB BOMB
simply falls to the ground
dozens for a single target
SMART BOMB
control their fall
hit a designated target
• smart bomb = bomb
• +
• electronic sensor system
• +
a built-in control system
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set of adjustable flight fins
• +
a battery
• sensor system feeds the control system the relative
position of the target
control system processes information and figures
out how the bomb should turn to
steer toward the target
• to turn the bomb the control system sends a message to actuators that adjust the flight fins
fins work the same basic way as the various flaps on an airplane
the adjustment process continues until the smart bomb reaches its target and the fuze mechanism sets off the explosive
types
TV / IR - guided
laser - guided
satellite - guided
TV/IR guided bomb
» conventional television video camera or an infrared camera
» relays information through radio signals
manual and automatic
Laser guided bomb
» laser seeker - an array of photo diodes
» has to "paint" the designated target with a high-intensity laser beam
» laser designator has its own unique pulse pattern
» laser beam reflects off the target, and the laser seeker picks it up
» control system's basic goal is to steer the bomb so that the reflected laser beam is hitting near the center of the seeker
major drawback
maintain visual contact with the target
• Satellite guided bomb
» adjustable tail fins
» a control computer
» inertial guidance system
» GPS receiver
» GPS receiver figures out its position by interpreting GPS satellite signals
» inertial guidance system monitors the bomb's movements, tracking its path from its launch position
» feeds the bomb's computer its current position and the GPS coordinates of the target
advantage
» accurate
» visual contact not required, hence can be used during bad weather
• advantages of smart bombs
target to be effectively attacked fewer or smaller bombs less harm to civilians minimize damage
• disadvantages of smart bombs
they require smarter, complex software human errors always present design must be bug free
cost too much