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Research On Laser Angle Deception Jamming Technology

Posted on:2016-06-25Degree:MasterType:Thesis
Country:ChinaCandidate:G QiFull Text:PDF
GTID:2308330473455595Subject:Optics
Abstract/Summary:PDF Full Text Request
Laser countermeasure technology has been paid more attention along with the widespread use of laser weapons.As an important component of countermeasure technology,laser interference has been become an important means of laser-guided weapons. By forwarding or reflectting laser signal, laser deception jamming system creates the interference signal which has the function of deception.So it can disrupt enemy’s guidance system.Then the guidance system wiil give the wrong information about distance and location.After these steps,the laser angle deception jamming can reduce the damage of the laser weapons.As an effective means of deception for defensing semiautomatic laser-guided weapons, Laser angle deception jamming has been widely used in ground-based weapons platforms. The laser angle deception jamming system emits signals to the fake targets by the laser jammer.Then the fake targets reflects the interference signal. There will be the true target and the false target in the field range of the weapon’s seeker.Then the laser-guided weapons would been deviated from a predetermined direction for hitting the true target.According to the laser angle deception jamming system,this article studies the conditions and efficacy of the system. The main work accomplished as follows:1.Analyze the guidance principle, merits and demerits of semi-active homing guidance.Descripe the principles and process of the laser angle deception jamming technology system in detail.2.The fake target is the most important part of the angle jamming system.Analyze the feasibility of choosing the natural features as the fake target.Compare the advantages and the disadvantages between nature features and artificials.Describe the placement of the artificial target, emulate the relationship between the tilt angle of diffuse plate and the distance from target to jam machine and divergence angle of laser. Emulate the idea that fake target placed on the surface of water and air. Analyze the possibility of the layout of multiple fake targets.3. In order to ensure preferable interference rejection performance, the laser pulse code and power are measure that semi-active homing guidance weapon has adopted. This paper study the common encoding style and laser coding identification technology briefly.Divide the true target into small and largr target according to the size,and we would study on the requirement of power agency on both small target and large target.4.There are many ways of detection on the laser jamming deception such as live ammunition shooting method,the whole process of simulation, semi-physical simulation method, computer simulation method.We choose the computer simulation method because this method has a short cycle and low cost. Calculate the success rate of laser interference and the kill rate on the real target by semi-active laser guided weapons if the interference worked successful.
Keywords/Search Tags:angle deception, fake target, lasepower, effectiveness analysis
PDF Full Text Request
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