Abstract
A point-spread function (PSF) is commonly used as a model of an optical disk readout channel. However, the model given by the PSF does not contain the quadratic distortion generated by the photo-detection process. We introduce a model for calculating an approximation of the quadratic component of a signal. We show that this model can be further simplified when a read-only-memory (ROM) disk is assumed. We introduce an edge-spread function by which a simple nonlinear model of an optical ROM disk readout channel is created.
© 2002 Optical Society of America
Full Article | PDF ArticleMore Like This
Bin Yin, Wim M. J. Coene, and Andries P. Hekstra
Appl. Opt. 46(23) 5598-5603 (2007)
Isao Ichimura, Kimihiro Saito, Takeshi Yamasaki, and Kiyoshi Osato
Appl. Opt. 45(8) 1794-1803 (2006)
Wim M. J. Coene
Appl. Opt. 42(32) 6525-6535 (2003)