Signal Qualification Method for Partial-Response Maximum-Likelihood Read/Write Channel

Autor: Harumitsu Miyashita, Naohiro Kimura, Hiromichi Ishibashi, Takeshi Nakajima, Yasumori Hino
Rok vydání: 2004
Předmět:
Zdroj: Japanese Journal of Applied Physics. 43:4850
ISSN: 1347-4065
0021-4922
DOI: 10.1143/jjap.43.4850
Popis: The partial-response maximum-likelihood (PRML) signal processing technique is effective for high-density recording media. However, there are few omit evaluation methods for qualifying the played-back signal using a simple measurement tool such as a jitter meter. We propose a simpler PRML qualification method, the so-called maximum-likelihood sequence error (MLSE) detection method. In this paper, we show the validity of the new method for dual-layer Blu-ray Disc read channel and, furthermore, show the method for optimizing the write channel.
Databáze: OpenAIRE