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《Journal of Beijing University of Aeronautics and Astronautics》 2009-09
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Ionosphere fitting method and path parameters analysis

Han Yifeng Yan Zhaowen(School of Electronics and Information Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China)  
Anti-parabolic model that function as the joint layer was adopted to describe the electron density distribution between the quasi-parabolic multi-lays in ionosphere.The parameters of the anti-parabolic layer,such as critical frequency,semi thickness and the layer bottom radial distance from earth's center,were calculated on the basis of the continuous electron density distribution and its continuous derivative.The plasma frequency calculated in the quasi-parabolic model or anti-parabolic model was substituted into Appleton-Hartree formula and Snell theorem to calculate the ray trace with the help of ray geometry in the ionosphere.The three important path parameters which are the ground range,group path and phase path were calculated on this multi-layer ionosphere model with the joint layer.The relationship between the path parameters,which is influenced by the angle of incidence and the working frequency,was analyzed.The relationship between the path parameters and the angle of incidence or the working frequency was analyzed too.
【CateGory Index】: P352
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 LI Xue JIAO Pei-nan FAN Jun-mei LIU Wen (China Research Institute of Radiowave Propagation, National Key Laboratory of Electromagnetic Environment,, Qingdao Shandong 266107, China);Simulation platform of backscatter ionogram[J];Chinese Journal of Radio Science;2006-04
【Secondary Citations】
Chinese Journal Full-text Database 3 Hits
1 JIAO Pei-nan FAN Jun-mei WU Hai-peng SUN Guang-jun LI Tie-cheng LU Zhuan-xia (China Research Institute of Radiowave Propagation, National Key Laboratory of Electromagnetic Environment, Xinxiang Henan 453003, China);The experimental research of the Doppler spectrum by HF skywave backscattering[J];Chinese Journal of Radio Science;2004-06
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