On the Channel Model of Digital Magnetic Recordings and the Capacity of RLL Codes

马啸; 王新梅

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On the Channel Model of Digital Magnetic Recordings and the Capacity of RLL Codes

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- On the Channel Model of Digital Magnetic Recordings and the Capacity of RLL Codes
- Acta Electronica Sinica Issue 10, (1997)
- 作者机构：
  
  西安电子科技大学
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP333
- Published：1997
- 稿件说明：
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[1]马啸,王新梅.数字磁记录的信道模型及RLL码的信道容量[J].电子学报,1997(10):65-69.

马啸, 王新梅. On the Channel Model of Digital Magnetic Recordings and the Capacity of RLL Codes[J]. Acta Electronica Sinica, 1997, (10).
[1]马啸,王新梅.数字磁记录的信道模型及RLL码的信道容量[J].电子学报,1997(10):65-69. DOI：

马啸, 王新梅. On the Channel Model of Digital Magnetic Recordings and the Capacity of RLL Codes[J]. Acta Electronica Sinica, 1997, (10). DOI：

摘要

游程长度受限码（ＲＬＬ码）又称（ｄ，ｋ）码，在数字磁记录中用于调制．至今，已有许多学者对此进行了研究．但大多数有关此码的信息论模型是无噪声的．基于Ｈｅｅｇａｒｄ模型，本文提出一种有噪声的离散信道模型，并估计了信道容量的上下限．

Abstract

Run-length-limited codes（RLL） also referred to as （d

k） codes

are used for modulation indigital magnetic recording. Up to now

the theory and design of these codes have been well developed. But

mostinformation theory models for these codes are noiseless. In this paper

a noisy discrete channel model

which isbased upon the Heegard medel

is considered. Further more

lower bounds and supper bounds on the capacity ofsuch a channel are derived.

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