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SIMULATION
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Artificial noise in read-write simulation of optical disk and drive

Shiuh Chao

Dept. of Electrical Engineering National Tsing Hua University Hsin-Chu, Taiwan Republic of China

Tsong-Yo Yang

Electro-Optics and Peripheral Center Industrial Technology Research Institute Hsin-Chu, Taiwan Republic of China

When the mathematical model of the read write(R/W) simulation of write once and read many (WORM) optical disk and drive was formulated and numerical analysis and software implementation of the simulation were carried out for the noise-free R/W process, it was found that the numerical process of the simulation introduced artificial noise in the read back signal. The artificial noises were due to finite precision of integration, finite density of written spot, and finite number of pits simulated. The noises can be reduced, but at the expense of computational time.

Key Words: optical storage • optical recording • optical disk.

SIMULATION, Vol. 56, No. 6, 403-412 (1991)
DOI: 10.1177/003754979105600612
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