The RMLE Synchronizer for Magnetic Recording Channel
碩士 === 國立清華大學 === 電機工程研究所 === 82 === In this thesis a synchronizer based on the recursive maximum likelihood estimation (RMLE) is derived from linear magnetic recording channel model. This channel model is valide when the spacial recording...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
1994
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| Online Access: | http://ndltd.ncl.edu.tw/handle/38608943402443296364 |
| Summary: | 碩士 === 國立清華大學 === 電機工程研究所 === 82 === In this thesis a synchronizer based on the recursive maximum
likelihood estimation (RMLE) is derived from linear magnetic
recording channel model. This channel model is valide when the
spacial recording interval is larger than a specified
transition parameter of magnetic medium. At linear recording
region, the magnetic channel is characterized by its non-
causaul transition response. This property makes the recording
channel work as a partial response channel, so the major
problem that we are considering becomes that a synchronizer
scheme on partial response signaling. It is found that the
convexity property of likelihood function plays an important
role on the performance of RMLE in partial response signaling
situation. This way the design consideration of RMLE
synchronizer will be the tradoff on the timing stability and
tracking capability because of non-ideal convexity proerty.
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