@inproceedings{d747a617191d48d680417be85657bc51,
title = "Can sea clutter and indoor radio propagation be modeled as strange attraetors?",
abstract = "Sea clutter is the backscattered returns from a patch of the sea surface illuminated by a radar pulse. The amplitude waveforms of sea clutter and indoor radio propagation are very complicated. Can the apparent randomness of these waveforms be attributed to be generated by low-dimensional chaos? Based on the assumption that a chaotic attractor is characterized by a non-integer fractal dimension and a positive Lyapunov exponent, Haykin et al (1992) concluded that sea clutter while Tannous et al (1991) concluded that indoor radio propagation data were chaotic. However, a numerically estimated non-integral fractal dimension and a positive Lyapunov exponent may not be sufficient indication of chaos. Other researchers have also indirectly questioned the chaoticness of the sea clutter. We employ a more stringent criterion for low-dimensional chaos developed by Gao and Zheng (Phys. Rev. E, 1994) to study a two minute duration sea clutter data provided by Haykin, and indoor radio propagation data measured at UCLA, and show that these data are not chaotic. We carry out a multifractal analysis and find that sea-clutter data can be modeled as multiplicative multifractals with a lognormal envelope distribution, while the radio propagation data can be modeled as a weak multifractal in the sense of structure function technique.",
author = "Gao, {J. B.} and Hwang, {S. K.} and Chen, {H. F.} and Z. Kang and K. Yao and Liu, {J. M.}",
note = "Publisher Copyright: {\textcopyright} 2003 American Institute of Physics.; 7th Experimental Chaos Conference ; Conference date: 26-08-2002 Through 29-08-2002",
year = "2003",
month = aug,
day = "19",
doi = "10.1063/1.1612208",
language = "English",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
pages = "154--161",
editor = "Visarath In and Ljupco Kocarev and Stefano Boccaletti and Gluckman, {Bruce J.} and Jurgen Kurths and Carroll, {Thomas L.}",
booktitle = "Experimental Chaos",
}