To address the issues of low radiation intensity,poor radiation stability,and short duration associated with traditional target drone's infrared indicators,this study conducted a systematic optimization of the indicator's pyrotechnic composition formula,charge structure,and charge density,then a new type of infrared indicator was designed.The reliability of the new infrared indicator was verified after environmental tests and firing test,and its infrared radiation performance was tested.The results show that the new infrared indicator has a radiation intensity of 1200 W/sr in the medium waveband(3.6～4.9 μm),a stable radiation time of 120 s,a dispersion within 90 W/sr,and no agglomeration,which effectively simulates the infrared radiation characteristics of light fighter aircraft.The optimization design in this study significantly enhances the performance of the target drone's infrared indicator,providing technical support for improving the authenticity and safety of live ammunition training for air force units.
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