The performance of the detection system is seriously affected by the non-uniformity characteristics of infrared seeker imaging.A non-uniformity correction algorithm based on weighted anisotropic infrared seeker is proposed for the non-uniformity correction proposition of infrared seeker.Firstly,the response model of infrared imaging system is briefly described, and the connection between the non-uniformity and the image histogram is analyzed,furthermore, the local weighted anisotropic histogram is introduced, forming a highly performance infrared seeker non-uniformity correction algorithm.The experimental results show that compared with other algorithms, the proposed method has obvious advantages both in terms of actual visual effect and objective quality evaluation, as well as the processing speed.

Considering the limitation of small range of strapdown laser guided munition, the target distance and angle acquisition probabilities of terminal guided munition were studied by computer simulation method. The seeker line of sight model was established by seeker imaging principle and coordinate transformation. The analytical method of target acquisition probabilities was proposed to get the best boot time, and conducted the experiment by Monte Carlo method. The results showed that the target acquisition of terminal guided munition was more than 99.87%, the variation range of line of sight was reduced with the increasing angle, and it was mostly affected by disturbance of angle.