Aiming at the urgent need of infrared radiation characteristics of different types of targets of interest under typical sea conditions in the development of high-precision missile infrared imaging guidance weapons, a model data-driven infrared radiation modeling method was developed. Firstly, by studying the influence factors of the system's full link in the Marine environment, the atmospheric radiative transfer model is constructed, and the theoretical values of the target and background parameters are calculated. Secondly, through the consistency comparison between the measured results and the theoretical model, the simulation target model is iterated to improve the system accuracy. Finally, the measured radiation luminance data of different bands and the theoretical modeling data of the same ship target in head-on and side-head-on attitude are compared and analyzed. The results show that the model prediction is in good agreement with the measured results, and the error is less than 15%. The proposed model is reliable and feasible, which can lay a model foundation for the follow-up development of infrared imaging guidelines, and provide technical support for the detection and recognition of sea surface targets.
Spectral imaging technology is an imaging technique based on narrowband spectroscopy developed in the 1980s. The spectral imager can simultaneously acquire the image information and spectral information of the target, and then accurately measure and analyze the composition of the substance. From food production to environmental monitoring, from material analysis to clinical diagnosis, from industrial monitoring to aerospace remote sensing, imaging spectrometers have become an important means for humans to obtain information, and there is a growing demand for civilian and military applications. It develops toward more spectral channels, higher integration, smaller size, and lighter weight. In this paper, the development methods and development status of several multi-channel spectral filters commonly used at home and abroad, as well as the research results of gradient filter design with half bandwidth of 10 nm in the 400nm~900nm band are introduced in detail.
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