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Study on the Optical System of Eyesafe Imaging Infrared/laser Seeker

Author: FuYanHui
Tutor: XuShiWen
School: Harbin Institute of Technology
Course: Optical Engineering
Keywords: Combined guidance Snapshot mode Athermal design Master oscillator fiber amplifier The microlens array
CLC: TJ765.331
Type: Master's thesis
Year: 2010
Downloads: 280
Quote: 0
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Abstract


Wars under conditions of informatization , precision-guided weapons to become an important means of implementing a devastating blow to the accuracy of precision-guided weapons against mainly dependent seeker guidance technology , Laser / Infrared Compound Guidance is considered the most promising technology , it can achieve the the photoelectric complementary, thus overcoming their deficiencies, and comprehensive utilization of the advantages of both . With the advantages of high resistance to electronic interference and hit accuracy , eye-safe laser radar technology for missile applications is currently a hot research . Introduced a new small infrared laser imaging seeker optical system design based on the eye-safe . Seeker is identified by infrared imaging system reentry vehicles , and provide target designation for laser radar , the FPA use of high- power laser radar snapshot image sampling to arrive at the three-dimensional information ( angle - the angle between missile and target - distance) . The paper first describes the system design requirements , design , and according to the infrared staring imaging formulas and the laser radar range equation , based on localization , determined to meet the requirements of the detectors , lasers , and optical system performance parameters . Infrared optical system design , based on the requirements and principles of the IR system design , select the appropriate optical components , system structure . The infrared imaging optical system based on this design , and the image quality evaluation . Thermal environment analysis and military environment -40 ~ 60 , and optical materials match and introduced two aspherical athermal optimization design , optimized system meets the system requirements in the system temperature change within , with good image quality . oC oC in the design of the optical system of the optical laser radar , according to the working principle of the laser radar , select high power, short pulses of the main fiber laser oscillation optical fiber amplifier (Master-Oscillator Power-Amplifier) ??as well as 64 × 64 InGaAs APD plane array , and the design a laser receiver / transmitter optical system , the image quality evaluation . To prevent failure of probing the feasibility of proposed diffractive microlens arrays and fiber-coupled detector program diffractive microlens array parameter is derived , and the calculation of the energy utilization of the optical system , a system designed to meet the design objectives .

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CLC: > Industrial Technology > Arms industry > Rockets, missiles > Missile > Guidance and Control > Guidance > Automated Guided > Seeker
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