Interleaving and Apodization for Volume Optical Storage
Abstract
Optical storage systems offer the potential for drastically increased data transfer rates through the use of parallel access. The fidelity and capacity of these optical systems are impacted by the interfaces used to access the parallel data. In particular, the coding and signal processing components of the system must be designed with the 2D data format in mind. This research has focused on novel methods of coding both the object arms (e.g., interleaving) and the reference arms (e.g., apodizing) of holographic optical storage systems. Our research efforts have produced several significant results: (1) An information-theoretic methodology has been established for quantif%ring the performance of VH systems, (2) A multidimensional interleaving strategy has been developed for optirnizing bit positions within a 2D channel. (3) An information-based design paradigm has been implemented for the design of data-bearing optical systems, and (4) Tradeoffs concerning the balance of noise reduction with storage density have been produced for both apodized and unapodized systems. Item (4) concerns work that is not yet published and a copy of an internal report describing this work is attached.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 02, 2001
- Accession Number
- ADA389433
Entities
People
- Mark A. Neifeld
Organizations
- University of Arizona