Rotating missile self-infrared radiation interference compensation for dual-band infrared attitude measurement

In order to solve the problem of large rotating missile surface infrared radiation interference during the dual-band infrared radiation attitude measurement and improve the infrared attitude measurement accuracy, the rotating missile self-infrared radiation compensation method is studied. Based on the six degree of freedom ballistic model, the surface temperature and infrared radiation characteristics of the missile are studied, and the surface temperature equation of the rotating missile is derived. According to the propagation law of dual-band infrared radiation in the atmosphere, the brightness of missile body dual-band infrared radiation is calculated, the mathematical model of dual-band infrared radiation compensation of the missile body is established, and the attitude compensation parameters of dual-band infrared radiation are simulated. The results of semi-physical experiments show that the error of attitude angle calculation after missile self-infrared radiation interference compensation is significantly reduced, and the attitude angle calculation accuracy is increased by more than 2.5 times. The compensation method provides an effective technical implementation method for the rotating missile self-infrared radiation interference compensation.