线性振动、角扰动对机载光电吊舱图像质量的影响

Influence of linear vibration and angular disturbance on image quality of airborne optoelectronic pod

摘要: 以直升机载光电吊舱为研究对象，分析振动对图像质量及稳定精度的影响，论述线性振动和角扰动如何使光电吊舱振动发生耦合，振动耦合从而导致系统的俯仰、方位都随光轴发生扰动，使得内部电视、热像等传感器设备随光轴扰动，使系统图像晃动，降低图像质量及稳定精度。比较线振动和角扰动对系统稳定精度影响程度的大小，提出了合理的减振方法。

Abstract: Taking airborne optoelectronic pod of armed helicopter as an example, the influences of the linear vibration and angular disturbance on the image quality and the stabilization precision were analyzed. Elevation and azimuth of the system occurred disturbance as a result of the coupling vibration, and so the internal television, thermal imaging and other sensor devices occurred disturbance, then the system image dithering occurred. The image quality and stabilization precision of the airborne optoelectronic pod could be improved greatly by installing it properly which means that it can improve the accurate attacking of the armed helicopter.