光盘道间距及其信道轨迹长度的测量

Measurement of track pitch of the optical disk and signal trace length

基于光盘的结构,将光盘抽象为一个反射光栅的模型,从而测出了光盘的道间距及信道轨迹长度.

From structure of optical disk, its signal trace can be viewed as a reflection grating, so track pitch of optical disk and the length of the signal trace on a CD can be measured.