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Modified Direct Insertion/Cancellation Method Based Sample Rate Conversion for Software Defined Radio
Anas Muhamad BOSTAMAM Yukitoshi SANADA Hideki MINAMI
IEICE TRANSACTIONS on Communications
Publication Date: 2008/08/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
fractional SRC, SDR, cognitive radio, direct insertion/cancellation, RF sampling receiver, resampling,
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In this paper, a new fractional sample rate conversion (SRC) scheme based on a direct insertion/cancellation scheme is proposed. This scheme is suitable for signals that are sampled at a high sample rate and converted to a lower sample rate. The direct insertion/cancellation scheme may achieve low-complexity and lower power consumption as compared to the other SRC techniques. However, the direct insertion/cancellation technique suffers from large aliasing and distortion. The aliasing from an adjacent channel interferes the desired signal and degrades the performance. Therefore, a modified direct insertion/cancellation scheme is proposed in order to realize high performance resampling.