A Systematic Analysis and Exploration of Target Image Acquisition Technology Under Plume Background

In the integrated ejection test of rocket ejection seat, the working state of the seat at the starting stage is an important examination link. Due to the influence of the seat rocket engine plume, the visible light passive imaging technology based on high-speed photography is difficult to obtain the working details of the target mechanism. Aiming at this technical problem, the feasibility study of using range-gated laser active imaging technology to obtain the target image under the plume background is carried out by analyzing the mechanism of the impact of the seat rocket engine plume on optical imaging. The principle of range-gated laser active imaging technology is described in detail, and key technologies such as laser active illumination, range-gated slice imaging, optical signal filtering, and multi-information image fusion are explored. The implementation approach of image acquisition technology is planned to provide research ideas and directions for subsequent technology realization.