Traditional vertical target system of single-linear array CCD based on measuring principle of coordinate-intersection is introduced

and attack angle measurement method of projectile in single-linear CCD vertical target system is analyzed. Problem of shortage is mainly caused by low scanning frame rate and error in measuring position of head and the tail-end of projectile on target is pointed out. On this basis

a new layout method for multilinear array vertical target system is put forward to measure attack angle of projectile

six images of vertical image are used to construct light screen array

a new measuring method is proposed based on time that projectile go through different light screen array and structure parameters of multi light sceen vertical target system. Using the multi-linear vertical target system avoid influence of error in measuring position of head and the tail-end of the projectile on measurement result. Assure measurement precision and reduce system cost.