A Comparison of FFT and Polyphase Channelizers

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Authors
  1. Faint, S.
  2. Read, W.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
In this report, an analysis of the signal detection capabilities of two different channelizing filter techniques was carried out. The filtering techniques used were the FFT channelizer and the Polyphase channelizer, with each of five different windows: the Boxcar, Bartlett, Hanning, Hamming, and Blackman windows. These were evaluated to determine their ability to detect a single signal, and to differentiate between two signals, both with and without noise. For testing purposes, simulated signal and noise data were used. This evaluation has lead to a better understanding of the strengths and weaknesses of the filtering techniques, and their relative performance in certain situations.

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Keywords
Channelizers;Frequency channelizers;FFT;Adaptive channelizers;Polyphase
Report Number
DRDC-OTTAWA-TM-2002-148 — Technical Memorandum
Date of publication
01 Jan 2003
Number of Pages
49
DSTKIM No
CA021856
CANDIS No
518656
Format(s):
Hardcopy;CD ROM;Electronic Document(PDF)

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