Optical Design Of Target Coupling System For Hardware-In-The-Loop Simulation

Precision detection weapons,which had the advantage of safe use and high accuracy,had been concerned by all over the world,one of which was homing detection system that was used for tracking dynamic targets.Depending on the function of imaging dynamic targets,homing detected weapons could track dynamic targets extremely well and it hand.However it is homing detected weapons relying on imaging dynamic targets that led degradation of image quality,which caused by aberrations of photovoltaic systems,aero-optical effects and motion blur effects,restrained accuracy of positioning,tracking and striking.Therefore,a method should be researched to evaluate effects of homing detected weapons of degradation of image quality.The results can be further used for providing a theoretical basis on how to reduce the impact of image degradation.Dynamic transfer function(DTF)is recognized to be an effective methods,which described the level of degradation of image quality of motion objects that imaged by time delay imaging sensor.It was therefore to study “Optical Design of Target Coupling System for Hardware-in-theLoop Simulation” to design optical subsystem of image detected hardware-in-theloop simulation which was used for the measure of DTF and other parameters.The main contents in this paper were shown as follows:Firstly,to satisfy the requirements of the projects,the population parameters of visible analogue measured system was analysed referring to the measured parameters of actual seekers,and basic program for optical target coupling system was proposed based on the principle of pupil coupling and image detected hardware-inthe-loop simulation,and then determined the undetermined parameters by the paraxial imaging equations.Secondly,based on Gaussian optical parameters of integrated design accomplished initial configurations of visible analogue measured system,visible telescope eyepiece and infrared telescope eyepiece with scaling method,designed initial configurations of visible teleobjective and visible collimator wih wave disparity method,and designed initial configurations of infrared teleobjective and infrared collimator with P.W method.According to the principle of aberration balance,system optimization and imaging quality evaluation,completed optimum design and evaluation of imaging quality.Finally,measures were taken to overcome potential difficulty.Since poor temperature stability of refractive infrared optics was overcomed with mechanical active athermalisation,the operating temperature range can be 5-flod expanded.And outer stray radiation was suppressed effectively using stops,vans and IR coatings.Additionally,the contradiction between lens design and machining precision were solved based on analyse of aberration tolerance,MTF and allocation of the mismachining tolerance of optical and mechanical components.Finally,the resolution and MTF of visible system were measued,and experiment results indicated that the result satisfied the project.