TESTING VARIOUS TIME-FREQUENCY DISTRIBUTION TECHNIQUES

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Authors
  1. Klepko, R.
  2. Tran, K.N.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
The representation of a signal in both the time and frequency domains is a major topic of study in the area of signal processing. Over the past 40 years, many plausible derivations and approaches of time-frequency distributions have been suggested. This paper tests two time-frequency distributions and compares their results. The two distributions are the discrete versions of the Wigner-Ville and Choi-Williams distributions. This paper will demonstrate the capability of each distribution to resolve discrete sinusoidal and real radar signals simultaneously in time and frequency. The radar data represents backscatter from a ship on the open ocean. The results will be compared to those obtained from the standard short-time Discrete Fourier Transform.
Report Number
DREO-TN-92-17 — Technical Note
Date of publication
15 Nov 1992
Number of Pages
54
DSTKIM No
93-00060
CANDIS No
127315
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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