This paper has carried out experiments on the influence of spectral resolution and channel number on the camouflage target recognition of imaging spectrometer. Based on the measured data, the camouflage helmet is selected as the spectral curve of camouflage target for resampling, and the spectral curve obtained under different spectral resolution and channel number conditions is simulated. Qualitative analysis is carried out by graphic method, interpolation operation is carried out on the resampling spectral data, and quantitative analysis is carried out by using SAM (Sepctral Angle Mapper) method. The resampling target characteristic spectral curve is compared with the original spectral curve in different ranges. The experimental conclusion is obtained by analyzing the spectral characteristics of the camouflage target under different spectral resolution and different channel number conditions, it can provide theoretical basis and technical support for the determination and optimization of spectral resolution and channel number of imaging spectrometer used for camouflage target recognition.
It is a great significance to study the simulation device of missile IR characteristics for improving the performance test of photoelectric detection equipment. Based on the analysis of the IR characteristic of the thermal radiation of the missile tail flame, a mathematical model of the thermal radiation of the missile tail flame is established, which is combined with the atmospheric transmittance model. The scheme design of structure module, temperature control module is given for MWIR and LWIR respectively. Taking a certain type of missile as an example, an experimental platform was built to verify the feasibility of the method.
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