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An Algorithm of Minimum Bandpass Sampling Selection with Guard-band Between Down-converted Adjacent IF signals  

Bae, Jung-Hwa (삼성전자 정보통신총괄)
Cho, Jae-Wan (고려대학교 전자컴퓨터공학과)
Ko, Yong-Chae (삼성전자 정보통신총괄)
Cac, Tran Nguyen (고려대학교 전자컴퓨터공학과)
Park, Jin-Woo (고려대학교 전자컴퓨터공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.32, no.12A, 2007 , pp. 1286-1295 More about this Journal
Abstract
This paper proposes, based on a bandpass sampling theory, a novel method to find valid sampling frequency range and minimum sampling rate with low computational complexity for downconversion of N bandpass radio frequency(RF) signals, under application of all possible signal placements(full permutations) in a IF stage. Additionally, we have developed a complexity-reducing method to obtaine the opttimal and minimal sampling rate for supporting the user-wanted guard-band or spacing between adjacent downconverted signal spectrums. Moreover, we have verified through comparisons with other methods that the proposed methods have more advantageous properties.
Keywords
Bandpass sampling; Sub-sampling; Software-defined radio; SDR;
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