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Finding the minimum sampling frequency of multi-band signals: An efficient iterative algorithm

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3 Author(s)
Yuan-Pei Lin ; Dept. Electr. & Control Engr., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Yi-De Liu ; See-May Phoong

In this paper, we propose an efficient iterative algorithm for finding the minimum sampling frequency for a signal that consists of multiple bandpass signals. This finds important application in software radio where it is desirable to down-convert multiple bandpass signals simultaneously. We will derive a new set of conditions for alias-free sampling for signals that contain multi-band signals. The conditions can be easily examined with few computations. The minimum sampling frequency can be found by iteratively increasing the sampling frequency to meet the alias-free conditions. The simulations demonstrate that the proposed method requires a much lower complexity than existing algorithms.

Published in:

Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on

Date of Conference:

May 30 2010-June 2 2010