Investigation of the Effective Parameters of the Second Laser for Deception of Homing Laser Seeker

Document Type : Original Article

Authors

1 Maleke Ashtar University of Technology

2 موسسه آموزشی و تحقیقاتی صنایع دفاعی

Abstract

Laser guidance, is one of the most common methods in guided weapons. Due to the high precision of this method and its spot-shaped collision ability, it is widely used in modern warfare. The main part of these weapons is laser seeker, which can guide the  weapons to hit the target, based on the beams reflected from it. As a defensive action toward these weapons, and in order to deceive and distract the weapons route from its main paths and orientation toward the false target, a second reflective laser can be used. In this article, in order to achieve the specifications of the deceptive laser, first, the behavior of laser-guided weapons detector is simulated, then the detector testing system is designed and implemented. Based on simulations and tests, information on the dimensions, power, and time of laser beam decoding was obtained as follows. Changing the laser beam's dimensions of deception relative to the main beam has no effect on the detector's performance. To deceive the laser-guided weapon detector, only the laser beam power should increase the deception to the original laser beam.The more the laser beam decrypts in the early stages of the attack, the more likely it is to deception the operation. In the case where the power of the main beam and the deception beam is equal, the total deviation of the detector depends on the average deviation of each of the beams. If the laser beam's ratio of deception to the original laser beam is tripled, the detector will be more affected by the deception laser.

1- Changing the dimension of the deception spot rather than that of main spot has no effect on the performance of the detector.2-In order to deceive the laser- guided missile detector, the power of deception spot should only increase with the power of the main spot.3-If sending the deception spot takes place in the early stages of the attack, the deception operation is more likely to succeed. 4-In case the power of the main spot and deception are equal, the total deviation of the detector depends on the average deviation of each of the spots relative to the detector center. 5- If the power of deception spot is more than three times as much as that of the main spot, the detector is further affected by the deception spot.

Keywords

References

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History

  • Receive Date: 13 June 2018
  • Revise Date: 08 September 2018
  • Accept Date: 31 October 2018
  • Publish Date: 22 June 2019

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