Incoherent scatter spectra due to HF heating in the low ionosphere region |
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Authors: | Bin Xu ZhenSen Wu Jian Wu and Kun Xue |
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Affiliation: | (1) School of Science, Xidian University, Xi’an, 710071, China;(2) State Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Beijing, 102206, China |
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Abstract: | The electron velocity distribution function and the incoherent scatter spectra during ionospheric heating in low ionosphere
region are presented with consideration of the elastic collision between electrons and neural particles and the excitation
of rotation energy level. The effects of pump frequency and electric fields on the spectra are discussed. With the increase
of electric field, the non-Maxwellian feature is enhanced, and with the increase of heating frequency, the non-Maxwellian
feature is weakened. The non-Maxwellian factor will bring a large error in ionosphere parameters, which must be considered
in the inversion.
Supported by the National Natural Science Foundation of China (Grant No. 40310223), the National Key Laboratory of Electromagnetic
Environment (LEME), and National Key Technologies R&D Program of China (Grant No. 2006BAB18B06) |
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Keywords: | incoherent scatter spectra non-Maxwellian distribution ionospheric heating |
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