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Study on Laser-induced CCD Detector Vulnerability and Survivability and Fussy Synthetic Evaluation on CCD Jamming Effects

Author: WangShiYong
Tutor: WuKeYong;GuoJin
School: Graduate Schoo,Chinese Academy of Sciences
Course: Optical Engineering
Keywords: Optoelectronic countermeasures CCD detector Laser interference Fuzzy Comprehensive Evaluation
CLC: TN249
Type: PhD thesis
Year: 2002
Downloads: 1005
Quote: 20
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The photodetector with strong target detection capability, high brightness laser has become a prime target for developed countries are vigorously developing laser weapons systems; thus various types of photovoltaic equipment photodetector, laser interference detector the degree of damage, disturbance can continue to work properly, when to reach the damage threshold and how to make an objective evaluation of the interference effect is that people are very concerned about the problem. Thus objectively reasonable assessment carried out laser the photodetector interference and damage experiment and interference effect has a very important significance. This article is an optoelectronic countermeasures and detection part of the first batch of key support project of the knowledge innovation project. The thesis includes the following sections. 1 describes the basic principle of the CCD photodetectors, which describes the CCD photoelectric characteristics model, analysis of \Pulse with continuous laser irradiation MOS structure typical materials silicon and aluminum heating model, and pulsed laser with continuous laser irradiation of silicon and aluminum temperature rise distribution of the numerical calculation, the temperature distribution curve; introduced fuzzy The basic idea of ??the basic mathematical theory and Fuzzy. 2, the system launched a pulse and continuous laser interference area CCD photodetector experiment, experiment confirmed: only lower energy compared with continuous laser, pulsed laser can undermine the CCD, get in the destruction area CCD detector aspects of pulsed laser is superior to continuous laser conclusions. Obtained through experiments, the laser interference pixel of the KA-320-type area array CCD photodetector saturation threshold, the target surface of the detector saturation threshold, localized damage threshold, and 0.632μm and 1.06μm band incident laser power and CCD target surface saturation degree of correspondence between the curve and understand the various stages of the area CCD detector by laser interference. The different frequency pulsed laser, a different field of view of the incident angle, to achieve a field of view of the CCD photodetector interference to verify the feasibility of laser interference area CCD detector of the visual field. Pulse laser photoelectric detection tracking simulation system interference in the the correlation tracking mode work, pointed out that the implementation of effective interference to the wave door only correlation tracking method fails. 3, according to the interference mechanism referred to in Chapter II of laser interference area CCD detector and Fuzzy comprehensive evaluation theory, combined with the experimental data obtained in the experiment, the laser interference lt; WP = gt; area CCD photodetector The moderating effect of fuzzy comprehensive evaluation model, and interference experiments carried out in this paper, the fuzzy comprehensive evaluation, assessment conclusion is consistent with the experimental results.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Laser applications
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