Study on fast digital imaging and processing technology for projectile

This paper introduces a method of realizing fast projectile digital imaging and a process of digital image processing. Multi-exposure shadowgraphy, fast digital imaging, and acquisition and digital image processing technologies were employed to build a projectile fast imaging system. Through quick interpretation of the spatial coordinates of a projectile, measurement of the attitude angle and speed of a flying object was realized. With this system, high accuracy interpretation and computation of shadowgraphs can be performed quickly and accurately by those having less experience and a priori knowledge of shadowgraphs. By adopting multi-flash imaging technology, we can extract not only the attitude of a flying object but also information on speed, nutation, etc.