广义Digisonde漂移分析原理  

THE PRINCIPLE OF GENERALIZED DIGISONDE DRIFT ANALYSIS

作　　者：郭兼善[1] 郑红[1] 张奇伟[1] 徐楚孚[1] 

机构地区：[1]中国科学院空间科学与应用研究中心

出　　处：《空间科学学报》1994年第4期277-285,共9页Chinese Journal of Space Science

摘　　要：本文给出一种广义Ｄｉｇｉｓｏｎｄｅ漂移分析（ＧＤＤＡ），取消了ＤＤＡ的假设限制，使Ｄｉｇｉｓｏｎｄｅ漂移测量能应用于更为复杂的运动形式，如电离层研究中的剪切、辐散或辐辏等运动形式。文中阐述了ＧＤＤＡ的原理并给出一些模拟实验结果．he utility of Digisonde Drift Analysis (DDA) is demonstrated recently in the polar region ionospheric convection measurements. However, the assumption of uniform velocity in the field of view of sounder made in DDA is not always correct. Therefore a Generalized Digisonde Drift Analysis (GDDA) is introduced that is not limited to the condition of uniform velocity and thus makes it possible that the Digisonde drift measurement can be used in the complicated ionospheric motion analysis such as velocity shears, divergence and convergence. The main concept of GDDA and some promising simulation results are presented in the paper.

关 键 词：DIGISONDE 漂移分析 多速场 电离层 等离子体 

分 类 号：P352[天文地球—空间物理学]