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With the continuous development of infrared technology and its extensive usage in the military, the infrared radiation attitude measurement technology is attracting more and more attention. Aiming at the compensation requirement for complex infrared background interference during the rotating missile infrared attitude measurement, the theoretical research on the dual-band infrared rotating missile attitude measurement is carried out. The mechanism and interference characteristics of the earth infrared radiation are analyzed according to the flying missile movement characteristics. The atmosphere propagation in 3~5– $\mu \text{m}$  and 8~14– $\mu \text{m}$  infrared radiation bands are studied, and the dual-band infrared radiation attitude measurement model is established. Then, the influence of cloud infrared radiation interference on the dual-band infrared radiation sensor is analyzed, and a nighttime dual-band infrared radiation attitude measurement difference compensation algorithm is proposed to obtain the compensated attitude angle parameter. The results of the semi-physical experiments show that the compensated roll angle error is within ±0.6° and the pitch angle error is within ±1°. The dual-band infrared radiation attitude measurement difference compensation algorithm can effectively eliminate the effects of cloud infrared radiation interference and improve the anti-interference ability of infrared radiation attitude measurement.

Dual-Band Infrared Radiation for Rotating Missile Attitude Measurement and Interference Compensation