| All kinds of dynamic parameters need to be measured in the process of weapon test,including the speed of moving target,target coordinates of space predetermined position and space flight attitude,etc.These parameters are the key technical indicators to evaluate the effectiveness of weapon damage,and have the characteristics of large amount of test data,short duration,complex test site environment and so on.To ensure that the test equipment can reliably and effectively test the above parameters,it is necessary to provide a reliable external trigger signal,which can also ensure that multiple sets of test equipment can start data collection at the same time.（1）Study on infrared radiation characteristics of high-speed moving projectile.The infrared radiation characteristics of high-speed moving objects are analyzed,the temperature change model and infrared radiation model of flying projectile are established,and the infrared radiation intensity of flying projectile in different bands is analyzed,which provides technical support for the design of infrared trigger.（2）The whole scheme design of mid-wave infrared detection for flying projectile The method of mid-wave infrared detection of flying projectile in terminal trajectory is studied,including the working principle of medium wave infrared trigger,the optical mechanism structure and device selection of medium wave infrared trigger,and the analysis of detection ability of medium wave infrared trigger.The effective detection of projectiles is realized in the medium wave infrared band,and a low-cost and reliable medium wave infrared trigger is designed to realize the effective detection of projectiles in the predetermined detection area.（3）Research on triggering method and hardware implementation of evidence theory.Multi-detector data fusion algorithm based on D-S evidence theory,through data fusion basic frame construction,basic probability distribution function construction and data fusion process and discrimination,realize data fusion and discrimination of multi-detector detection results,design the corresponding trigger control circuit based on evidence theory.（4）Testing and verification.By simulating the mid-wave infrared of flying projectile,the mid-wave infrared trigger test and multi-detector trigger control device test based on evidence theory are carried out to verify the effective detection of mid-wave infrared trigger on flying projectile and the multi-detector trigger control device can effectively improve the trigger reliability.Through experiments,it is verified that the proposed algorithm can meet the technical requirements. |
