Abstract
In order to carry out various detections of system indicators during the research and development phase of infrared guided missiles, the article first analyzes several main design schemes of the infrared guided missile detection simulator and finds that it has the disadvantages of difficult processing technology and low detection accuracy. The overall structure of the detection device was designed, including the design of the rotation and swing mechanism, lens mechanism, optical system and control system. The optical system error analysis is performed on the infrared guided missile detection simulator. The position of the receiving light source is obtained by analyzing the mechanism characteristics of the detection simulator and the kinematics model of the device. The phase difference analysis of the eccentricity and tilt system is obtained. The image quality was evaluated by the optical transfer function (MTF), and the system error was found to meet the requirements of imaging quality. The experiments show that the simulation of 1.7~4.9 um medium wave infrared dynamic target signals provides an accurate and reasonable experimental environment for the missile and the verification of the light source target and meets the experimental requirements.
Highlights
In today’s era, infrared guided missile systems have been sought after by various countries due to their high resolution, strong anti-interference, simple equipment, light weight, low cost, and good concealment, and have developed rapidly [1,2]
The advantage of this solution is that the structure is compact, the coordinates of the rotating shaft are unified, and the accuracy is determined only by the inertia and angular acceleration of the outer frame of the turntable, so the position accuracy is high; The disadvantage of this solution is that the machining process of the five-axis turntable is more difficult and the cost is high; because the composite target projection system is installed on the outer frame, the moment of inertia is increased, which limits the dynamic performance of the equipment servo system, and cannot achieve the complex target
Because the blackbody and tungsten filament lamp need to be fixed during the test, in order to reduce the weight of the simulator and reduce the moment of inertia, the 4lionfe2a6r movement of the blackbody and tungsten filament lamp uses the linear sliding movement of the aluminum block on the carbon fiber tube, and the aluminum pieces that have been arruelefidxebdyotnhethreulliemr iatrbeloficxkesdaot nboththeelnimdsittbolfoacckilsitaattebtohtehaednjdussttmo efnactioliftathtee tdhisetaandcjuesbtmetweneteonf tthheebdliasctkabnocedybeatnwdetehnetthuenbglsatceknbfioldaymaenndt ltahme ptu. ngsten filament lamp
Summary
In today’s era, infrared guided missile systems have been sought after by various countries due to their high resolution, strong anti-interference, simple equipment, light weight, low cost, and good concealment, and have developed rapidly [1,2]. The large-screen projection-type infrared simulation system [8], an infrared guided semi-physical simulation detection device built by the American Boeing Aerospace Corporation in the 1970s, consists of four parts: an infrared target generation system, a large reflective screen, a three-axis turntable, and a control computer The disadvantage of this solution is that it needs to process precise large ellipsoidal mirrors. The distance simulation of the point target is realized by the change of the aperture of the scene stop of the optical projector in the target generation system The advantage of this solution is that the structure is compact, the coordinates of the rotating shaft are unified, and the accuracy is determined only by the inertia and angular acceleration of the outer frame of the turntable, so the position accuracy is high; The disadvantage of this solution is that the machining process of the five-axis turntable is more difficult and the cost is high; because the composite target projection system is installed on the outer frame, the moment of inertia is increased, which limits the dynamic performance of the equipment servo system, and cannot achieve the complex target. The simulator has the characteristics of long entry pupil distance, accurate target positioning, rotating and swinging around the central axis, remote control and test circulation
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