Title :
A modulated orthogonal sequence and noise reduction
Author :
Park, Seong Ill ; Park, Jeongsoon ; Kim, Hong Gil ; Song, Iickho ; Kim, Kwang Soon
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
In this paper, we investigate a noise reduction scheme based on the inherent noise reduction characteristic of a modulated orthogonal sequence. The modulated orthogonal sequence generates length N2 sequences from N information symbols. Using the amplitudes of the received symbols, we first estimate the location of the smallest amplitude noise. Then the noise is reduced by the suggested system
Keywords :
channel coding; code division multiple access; fast Fourier transforms; interference suppression; matched filters; modulation coding; noise; parameter estimation; sequences; inherent noise reduction characteristic; length N2 sequences; modulated orthogonal sequence; noise reduction; smallest amplitude noise estimation; Amplitude estimation; Autocorrelation; Gas insulated transmission lines; Interchannel interference; Matched filters; Multiaccess communication; Noise generators; Noise level; Noise reduction; Signal processing;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.638468
