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Wavelet characterization of turbulence for ionospheric region of the Pakistan air space
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نویسنده
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ayub khan yousuf zai m. ,mian k.
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منبع
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proceedings of the pakistan academy of sciences - 2012 - دوره : 49 - شماره : 4 - صفحه:295 -300
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چکیده
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It has been observed that solar activity affects the communication system. this effect is due to the ionospheric turbulence. the turbulence due to the perturbation concentration and parcel velocity were analyzed in upper and lower layers of the ionosphere by spectral analysis,fast fourier transformation and wavelet transformation in one dimension,flaar 5-levels for approximation and details. wavelet analysis is known as the method to study non-stationary data. wavelet analysis is used to quantify both signal of variability,non-stationarity and unification between ionospheric turbulence and solar activity,the results are presented under changing ionospheric conditions. © pakistan academy of sciences.
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کلیدواژه
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Fast Fourier Transformation; Ionosphere; Perturbation; Spectral analysis; Turbulence; Wavelet
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آدرس
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solar-terrestral and atmospheric research center,department of applied physics,university karachi, Pakistan, institute of space and planetary astrophysics,university of karachi, Pakistan
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Authors
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