VARIATIONS IN NON-LINEARITY IN VERTICAL DISTRIBUTION OF MICROWAVE RADIO REFRACTIVITY. | Zendy

Adekunle Titus Adediji | Zendy; Samuel Ogunjo | Zendy

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VARIATIONS IN NON-LINEARITY IN VERTICAL DISTRIBUTION OF MICROWAVE RADIO REFRACTIVITY.

Author(s) -

Adekunle Titus Adediji,

Samuel Ogunjo

Publication year - 2014

Publication title -

progress in electromagnetics research m

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.216

H-Index - 31

ISSN - 1937-8726

DOI - 10.2528/pierm14041606

Subject(s) - microwave , linearity , radio frequency , distribution (mathematics) , materials science , optics , environmental science , telecommunications , physics , computer science , mathematics , mathematical analysis , quantum mechanics

Radio refractivity values obtained for difierent heights (Ground surface, 50m, 100m and 150m) over a tropical station, Akure, South-Western Nigeria using in-situ data over a period of flve years has been investigated for chaos. Several chaos quantiflers such as entropy, Lyapunov exponent, recurrence plot were used. Determinism was detected in the time series studied at all the levels. Results obtained from the computation of radio refractivity show that the value of radio refractivity decreases with increasing altitude while chaotic quantiflers obtained at ground level and height 100m are found to be more chaotic than the other two levels (50m and 150m).

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