Limitations of Non-Linear Dynamics in Predicting Sea Clutter Returns

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Authors
  1. McDonald, M.K.
  2. Damini, A.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
The ability to describe sea clutter returns via non-linear, and more specifically chaotic dynamics, is examined. It is shown that the commonly used chaotic invariant measures of correlation dimension and Lyapunov exponent are incapable of uniquely identifying chaotic processes and produce similar results for measured sea clutter returns and simulated stochastic processes. The potential existence of an underlying chaotic texture masked by stochastic overlying speckle is examined but found to be inconsistent with the measured properties of the measured sea clutter data. Finally, the performance of linear and non-linear predictors is tested against the real data but no improvement is found to exist for the non-linear predictor examined in this report with respect to linear prediction performance.

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Keywords
Chaos
Report Number
DRDC-OTTAWA-TR-2002-130 — Technical Report
Date of publication
01 Nov 2002
Number of Pages
43
DSTKIM No
CA021725
CANDIS No
518448
Format(s):
Hardcopy;CD ROM

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