Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Pilsang Yoon"'
Autor:
Sungrae Kim, Myungkyu Lee, Yu Geunyeong, Kijun Lee, Beomkyu Shin, Pilsang Yoon, Gyuyeol Kong, Junjin Kong, Dong-Min Shin, Hong-rak Son
Publikováno v:
APCCAS
This paper introduces a novel post-processing algorithm for low-density parity-check (LDPC) codes adequate for NAND flash memory, to improve error correction capability of a soft decision decoding by reducing strong error effects in an efficient way.
Publikováno v:
Japanese Journal of Applied Physics. 47:5981-5988
In this report, we discuss low-density parity-check (LDPC) code for a holographic digital data storage (HDDS) system. In conventional LDPC decoding, the exact log likelihood ratio (LLR) value improves the error performance of the proposed LDPC code.
Publikováno v:
Japanese Journal of Applied Physics. 46:3812-3815
A modified low-density parity-check decoding scheme for holographic data storage has been developed and evaluated. It compensates the negative effect from neighboring pixels during the iterative decoding process, which improves the overall error-corr
Publikováno v:
Japanese Journal of Applied Physics. 45:1277-1284
An optimal track format for a holographic read-only-memory (ROM) disk is proposed that minimizes the intertrack crosstalk and stores conventional optical disk pit patterns with a density equivalent to that of digital versatile discs (DVDs) in a singl
Publikováno v:
Japanese Journal of Applied Physics. 45:1285-1287
A channel data retrieval scheme for page-based holographic data storage has been developed. It includes several signal-processing blocks for retrieving data reliably under noisy condition, namely, a frame grabber for capturing data adaptively in a ro
Publikováno v:
FUZZ-IEEE
This paper describes the design of a robust adaptive fuzzy observer for uncertain nonlinear dynamical system. The Lyapunov synthesis approach is used to guarantee a uniform ultimate boundedness property of the state estimation error, as well as of al
Publikováno v:
FUZZ-IEEE
We present a control method for a general nonlinear systems using Takagi-Sugeno fuzzy models and develop an adaptation law to adjust the parameters of the fuzzy system. It is proved that the closed-loop system is stable in the sense of Lyapunov and a
Publikováno v:
SPIE Proceedings.
We propose a new error correction scheme for holographic data storage. It provides volumetrically coupled ECC blocks with iterative decoding, which can cover seriously corrupted pages, may occur due to imperfect recording media or other defects on op
Publikováno v:
FUZZ-IEEE
We propose and analyze a robust adaptive fuzzy controller for uncertain nonlinear systems without information on the input gain sign. The proposed scheme completely overcomes the singularity problem which occurs in the indirect adaptive feedback line
Publikováno v:
Japanese Journal of Applied Physics. 48:03A034
In this study, misalignment compensation and equalization methods for holographic data storage are developed and evaluated. The proposed compensation algorithm removes a known contribution for pixel misregistration. The equalization technique reduces