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Extraction of Signals Buried in Noise: Non-Ergodic Processes
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International Journal of Communications, Network and System Sciences·Volume 03 (2010)·Pages 907–915·Published 27 December 2010·DOI10.4236/ijcns.2010.312124
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Abstract
In this paper, we propose extraction of signals buried in non-ergodic processes. It is shown that the proposed method extracts signals defined in a non-ergodic framework without averaging or smoothing in the direct time or frequency domain. Extraction is achieved independently of the nature of noise, correlated or not with the signal, colored or white, Gaussian or not, and locations of its spectral extent. Performances of the pro-posed extraction method and comparative results with other methods are demonstrated via experimental Doppler velocimetry measurements.
KeywordsBuried SignalsStationary Non-Ergodic ProcessesSpectral AnalysisWhite NoiseColored NoiseCorrelated NoiseDoppler Velocimetry
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