空间科学学报2017，Vol.37Issue(6)：710-716,7.DOI:10.11728/cjss2017.06.710
基于各向异性分布的非相干散射雷达谱仿真
Simulation of Incoherent Scatter Radar Spectra Based on Inhomogeneous Distribution
摘要
Abstract
Based on the theoretical hypothesis of ion inhomogeneous distribution during ionospheric heating,the model of non-equilibrium 3D velocity distribution of the ions with acoustic frequency exciting is built,and the calculation method of incoherent scatter spectra with arbitrary line of sight are presented.The effect of the amplitude modifying factor,particle component of acoustic frequency,the angle between radar beam and magnetic field direction,and temperature inhomogeneous on power spectra are analyzed.The results can perfectly explain amplitude enhancement of ion line that is more than an order of magnitude,and asymmetry phenomena when the ascending ion line is stronger than the down ion line.The study has great significance for plasma parameter inversion under the condition of strong disturbance heating of ionospheric.关键词
各向异性分布/离子声波激发/非相干散射谱/离子体参数反演Key words
Inhomogeneous distribution/Acoustic frequency exciting/Incoherent scatter spectra/Ion parameter inversion分类
天文与地球科学引用本文复制引用
徐彬,王占阁,许正文,吴健,薛昆..基于各向异性分布的非相干散射雷达谱仿真[J].空间科学学报,2017,37(6):710-716,7.基金项目
国家自然科学基金项目(41004065,41104108,61601419,11672068)和电波环境特性及模化技术重点实验室基金项目共同资助 （41004065,41104108,61601419,11672068）
