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pro vyhledávání: '"Seehyun Kim"'
Autor:
Seehyun Kim
Publikováno v:
Journal of the Korea Institute of Information and Communication Engineering. 20:1961-1966
Autor:
Seehyun Kim
Publikováno v:
Journal of the Korea Institute of Information and Communication Engineering. 19:2403-2408
For image data the discrete cosine transform (DCT) has comparable energy compaction capability to Karhunen-Loeve transform (KLT) which is optimal. Hence DCT has been widely accepted in various image and video compression standard such as JPEG, MPEG-2
Autor:
Seehyun Kim
Publikováno v:
Journal of IKEEE. 19:342-348
High speed implementation of digital filters is required in high data rate applications such as hard-wired wide band modem and high resolution video codec. Since the critical path of the digital filter is the MAC (multiplication and accumulation) cir
Autor:
Seehyun Kim
Publikováno v:
Journal of the Korea Institute of Information and Communication Engineering. 18:2375-2381
In case the coefficient set of an FIR filter is represented in the canonic signed digit (CSD) format with a few nonzero digits, it is possible to implement high data rate digital filters with low hardware cost. Designing an FIR filter with CSD format
Autor:
Seehyun Kim
Publikováno v:
Journal of the Korea Institute of Information and Communication Engineering. 18:2087-2093
In this paper, an orthogonal matching pursuit (OMP) method combined with genetic algorithm (GA), named GAOMP, is proposed for sparse signal recovery. Some recent greedy algorithms such as SP, CoSaMP, and gOMP improved the reconstruction performance b
Probabilistic Exclusion Based Orthogonal Matching Pursuit Algorithm for Sparse Signal Reconstruction
Autor:
Seehyun Kim
Publikováno v:
Journal of IKEEE. 17:339-345
In this paper, the probabilistic exclusion based orthogonal matching pursuit (PEOMP) algorithm for the sparse signal reconstruction is proposed. Some of recent greedy algorithms such as CoSaMP, gOMP, BAOMP improved the reconstruction performance by d
Publikováno v:
IEEE Transactions on Vehicular Technology. 62:1389-1394
In this paper, we derive the average pairwise error probability (PEP) of an integer carrier frequency-offset (CFO) estimator with consistent pilots in orthogonal frequency-division multiplexing (OFDM) systems and address several issues based on PEP a
Publikováno v:
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. 45:1455-1464
Fixed-point optimization utility software is developed that can aid scaling and wordlength determination of digital signal processing algorithms written in C or C++. This utility consists of two programs: the range estimator and the fixed-point simul
Autor:
Wonyong Sung, Seehyun Kim
Publikováno v:
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. 41:730-739
A floating-point digital signal processor-like programming environment is developed for the Texas Instruments TMS 320C25, a fixed-point digital signal professor. Programmers first develop an assembly program using a hypothetical floating-point instru
Publikováno v:
1999 Digest of Technical Papers. International Conference on Consumer Electronics (Cat. No.99CH36277).
In this paper, a single chip HDTV decoder is presented which drastically cuts down the cost of a HDTV receiver. The cost reduction is achieved by integration of system demux, down-converting video decoder, and multi-mode audio decoder. System designe