Detection distance calculation model of flying target and atmospheric influence analysis

In complex environment, target characteristic and atmosphere will affect the performance of the photoelectric track and detection system, it makes the detection sensitivity of photoelectric detection image system will be weaken, to improve its detection ability, this paper researches a new calculation detection distance method and analyze atmosphere influence based on the principle of photoelectric tracking system; analyze the function relationship between surface temperature distribution and flight time, set up the calculation model of target surface radiation energy by dividing target surface into two-dimensional direction multi-cell-grid, and give scientific computing process; derive the calculation function detection distance of flight target and analyze the influence factors on atmosphere to detection distance and detection performance. Through calculation and analysis, the results show the detection distance calculation function can correct describe the real detection performance of photoelectric track and detection system; give the changing curve in different detection distance the photo-electronic sensor gain the radiation energy.