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- Sung-Tai Choi, Tae-Hyung Lim, Jong-Seon No, Habong Chung
- IEEE Trans. Information Theory
- 2012

- Tae-Hyung Lim, Jong-Seon No, Habong Chung
- IEICE Transactions
- 2011

SUMMARY In this paper, a new construction method of quaternary sequences of even period 2N having the ideal autocorrelation and balance properties is proposed. These quaternary sequences are constructed by applying the inverse Gray mapping to binary sequences of odd period N with the ideal autocorrelation. Autocorrelation distribution of the proposed… (More)

- Ji-Youp Kim, Sung-Tai Choi, Tae-Hyung Lim, Jong-Seon No, Habong Chung
- ISIT
- 2012

- Jung-Soo Chung, Young-Sik Kim, Tae-Hyung Lim, Jong-Seon No, Habong Chung
- IEICE Transactions
- 2009

— In this paper, we derive the cyclotomic numbers of order 5 over an extension field Fpn using the well-known results of quintic Jacobi sums over Fp [1]. For p ≡ 1 mod 5, we have obtained the simple closed-form expression of the cyclotomic numbers of order 5 over Fpn. For p ≡ 1 mod 5, we express the cyclotomic number of order 5 over Fpn in terms of the… (More)

- Hyeong-Gi Jung, Tae-Hyung Lim
- Korean journal of ophthalmology : KJO
- 2013

PURPOSE
To evaluate the optical quality after laser in situ keratomileusis (LASIK) or serial photorefractive keratectomy (PRK) using a double-pass system and to follow the recovery of optical quality after laser vision correction.
METHODS
This study measured the visual acuity, manifest refraction and optical quality before and one day, one week, one… (More)

- Sung-Tai Choi, Tae-Hyung Lim, Jong-Seon No, Habong Chung
- 2011 IEEE International Symposium on Information…
- 2011

For a prime p ≡ 1 mod 4, an odd integer n, and d = p<sup>n</sup>+1 over p+1 + p<sup>n</sup>−1 over 2, we investigate the cross-correlation values of p-ary m-sequence m(t) of period p<sup>n</sup> − 1 and its decimated m-sequence m(dt). It is shown that the cross-correlation function between m(t) and m(dt) takes the values in equation.

In this paper, the relationship among M-ary Sidel'-nikov sequences generated by different primitive elements and decimation are studied. Their autocorrela-tion function and autocorrelation distribution are derived. It is proved that Sidel'nikov sequences for a given period are equivalent under the decimation, cyclic shift, and scalar multiplication of the… (More)

- Jung-Soo Chung, Young-Sik Kim, Tae-Hyung Lim, Jong-Seon No, Habong Chung
- Proceedings. International Symposium on…
- 2005

In this paper, we derive the cyclotomic numbers of order 5 over an extension field F<sub>p</sub> <sup>n</sup> using the well-known results of quintic Jacobi sums over F<sub>p</sub> (B. C. Berndt, et al., 1998). For p ne 1 mod 5, we have obtained the simple closed-form expression of the cyclotomic numbers of order 5 over F<sub>p</sub> <sup>n</sup>. For p… (More)

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