Digital Satellite Reconnaissance Camouflage Effect Simulation System

In the field of digital camouflage, evaluation of camouflage efficiency is an important work, which effectively represents the effect of the digital camouflage and promotes the progress of camouflage design. Because the optical imaging satellite reconnaissance has become a fundamental tool of reconnaissance mode in modern warfare, it is extremely necessary to establish a simulation system that can quickly and efficiently evaluate digital camouflage under satellite reconnaissance.In this thesis, firstly it was put forward to take ground resolution as the main simulation parameter, use zoom lens to obtain multi-spectral images of the target, and use subsequent image processing to simulate optical imaging satellite reconnaissance effect. General structure and software flowchart of the system were designed based on the above. Hardware system designs, including optical imaging system, mechanical system and electrical system were completed accordingly. The selection, measurement and verification of key components were also accomplished in accordance with the relevant technical indicators. Then, the resolution matching algorithm was established via the pixel weighted average algorithm and low-pass filter.The atmosphere correction equation for visible and near-infrared spectral band was also established via atmospheric transmission model MODTRAN. Image gray mapping method was eventually used to generate simulated color images in this part. Based on the simulation system, an experiment was finally conducted to obtain the digital camouflage simulated image under satellite reconnaissance, whose camouflage effectiveness was later evaluated from the perspective of the ratio of mixed area.