標題: | Alternating coordinates minimization algorithm for estimating parameters of partial erasure plus transition shift model |
作者: | Kao, TS Cheng, MH 電控工程研究所 Institute of Electrical and Control Engineering |
關鍵字: | alternating coordinates minimization;maximum likelihood detector;partial erasure ratio;partial response channel;transition shift parameter |
公開日期: | 1-七月-2004 |
摘要: | The identification of model parameters of a high-density recording channel is usually difficult and complicated. In this paper, we successfully apply the alternating coordinates minimization (ACM) algorithm for estimating parameters of a partial erasure plus transition shift model (PETSM). The resulting algorithm turns out to iteratively solve two least square problems and is guaranteed to converge. Furthermore, the obtained model for a nonlinear partial response channel is more accurate than conventional models such that the maximum likelihood (ML) detector has better bit error rate (BER) performance without increasing its realization complexity. Computer simulations show that the ACM algorithm can accurately estimate the model parameters and the BER for the detector is significantly improved especially when the transition shift parameter is large. |
URI: | http://dx.doi.org/10.1109/TMAG.2004.830223 http://hdl.handle.net/11536/26603 |
ISSN: | 0018-9464 |
DOI: | 10.1109/TMAG.2004.830223 |
期刊: | IEEE TRANSACTIONS ON MAGNETICS |
Volume: | 40 |
Issue: | 4 |
起始頁: | 3096 |
結束頁: | 3098 |
顯示於類別: | 會議論文 |