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Laser Guided Weapons LGW

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laser energy reflected from a target marked by a laser, and through ... Smoke, dust, and chemical particles in the air may attenuate or reflect the laser beam ... – PowerPoint PPT presentation

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Title: Laser Guided Weapons LGW


1
Laser Guided Weapons(LGW)
2
  • Laser-Guided Weapon (LGW)-
  • A weapon which uses a seeker to detect
  • laser energy reflected from a target marked by a
    laser, and through
  • signal processing provides guidance
  • commands to a control system which
  • guides the weapon to the point from which
  • the laser energy is being reflected

3
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4
Major Components
  • Laser
  • Seeker
  • Munitions
  • Delivery System
  • Target

5
Laser
  • Used to paint the target
  • Light from the laser is reflected and scattered
    of the target
  • Can originate from the ground or from an aircraft

6
Laser
  • Typically in the near infrared
  • Allows for day and night use
  • Smoke, dust, and chemical particles in the air
    may attenuate or reflect the laser beam
  • Spectral reflection is bad
  • A good reflection means the seeker needs to be in
    a narrow region

7
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8
Munitions
Seeker
9
Seeker
  • Seeker has Riflescope-like optics
  • Very narrow Field of View
  • The electronics samples the reflected laser
    energy from the target and corrects its
    trajectory
  • Onboard guidance system guides the unit to the
    target

10
Why use LGW?
  • Cheaper
  • Higher Accuracy
  • Less Munitions Required
  • Less Civilian Casualties
  • Greater Target Damage
  • Simple to Convert From Old Munitions

11
Whats New?
  • Global Positioning System (GPS) integrated into
    the munitions
  • GPS and laser guidance used together for best
    results

12
GPS
  • How it works
  • Use satellites as reference
  • Measure the distance by timing how long it takes
    for a signal sent from the satellite to arrive at
    the receiver.

http//www.trimble.com/gps/index.html
13
Main advantages over laser guided
  • Does not require painted target
  • Can be used in more varying weather conditions

14
Accurate targeting leads to successful results
15
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