With the development of infrared guidance technology,the dual band guidance technology will become the main-stream.It is important to develop infrared decoy that match the infrared spectrum of aircraft.Much research work was carried out at home and abroad for spectral improved infrared decoy.In this paper,the research progress of spectral improved decoy in the fields of pyrotechnic,double-base propellant,and composite solid propellant was introduced.The research on spectral modification of Mg/PT-FE/Viton(MTV)decoy in pyrotechnics is the mainstream direction at present.The overall radiation intensity of MTV decoy is very high,and the effect of improving the spectral radiation ratio of MTV decoy only by formula adjustment is not significant.Changing the loading mode,a better spectral radiation ratio can be achieved by a large area of low-temperature MTV decoys.The overall infrared radiation intensity of the composite propellant is not as good as that of the MTV decoy,but its spectral radiation ratio and motion characteristics are better than those of the MTV decoy,and it has a good application prospect.
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