Efficient filterbank channelizers for software radio receivers
نویسندگان
چکیده
For cellular software radio receivers, this paper presents a computationally efficient algorithm for extracting individual radio channels from the output of the wideband A/D converter. In a software radio, the extraction of individual channels from the output of the wideband A/D converter is by far the most computationally demanding task; hence, it is very important to devise computationally efficient algorithms for this task. Our algorithm is obtained by modifying the DFT filter bank structure that is well known in the multi-rate signal processing literature [8, 5]. We show that the complexity of the proposed algorithm is significantly less (2X-50X) than the complexity of the conventional channelizers.
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