Analysis on detection ability of space-based space target

Space target detection ability of visible light camera is related to the visible characteristics of the space target, detector performance and other factors. To get the detection ability of space optical camera on medium-orbit and low-orbit space target at the distance from 200 to 1 500 km, a mathematical model of space target characteristics was established based on the basic theory of radiation by considering geometry, background, and material characteristics of the space target. Furthermore, a simulation was conducted at the spectral bands of 0.4 to 0.7 um. The theoretical calculations of detection ability on medium-orbit and low-orbit space target by the visible light camera was got and the formula of related optical parameters was also obtained. These conclusions can provide theoretical support for the design of space optical camera.