Detection of Frequency Hopping Signals in Digital Wideband Data

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Authors
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
In this report, a number of approaches to detect a frequency hopped signal in digital wideband data were investigated, both theoretically and through computer simulations. These approaches included the FFT, the polyphase filter, and the periodogram, plus variants of the these approaches using windowing functions and frequency smoothing. Additionally, the maximum likelihood approach was included as a benchmark for detection performance. The main purpose of the investigation was to determine the best approach for detecting a frequency hopped signal in wideband data in the presence of noise. The effect of interference from other inband signals was considered, and an assessment of the number of computations required for each approach was also carried out.

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Keywords
Periodogram;Channelization;Maximum Likelihood Estimation (MLE)
Report Number
DRDC-OTTAWA-TR-2002-162 — Technical Report
Date of publication
01 Dec 2002
Number of Pages
60
DSTKIM No
CA022016
CANDIS No
518839
Format(s):
Hardcopy;CD ROM

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