摘要
研究了自由空间中半波偶极子云团对于单基地观测雷达的有效散射截面问题。在自由空间中抛撒偶极子云团后 ,随着飞行时间的增加 ,偶极子云团与雷达观测分辨单元之间的相对几何关系将发生变化 ,进而使云团相对于雷达的有效散射截面发生变化。文中以球状偶极子云团为例 ,详细讨论了云团与雷达空间分辨单元之间的相对几何关系 ,给出了云团有效干扰体积和有效干扰截面的计算公式 ,并结合某多功能相控阵雷达 。
The problem of dipole cloud′s effective scattering cross section while observed by a monostatic radar was studied. In outer space, the geometrical relationship between dipole cloud and radar′s resolution cell varies during the cloud′s flight process. The effective scattering cross section of dipole cloud versus an observation radar will vary consequently. In a globe-like dipole cloud case, the relative geometrical relationship between cloud and radar space resolution cell was studied in detail. Formulae of cloud′s effective jamming volume and cross section were derived. In connection with the background of some multifunctional phased array radar, its observation results of dipole cloud in outer space are calculated.
出处
《电波科学学报》
EI
CSCD
2001年第2期261-265,共5页
Chinese Journal of Radio Science
基金
国家自然科学基金资助项目 (6 990 2 0 10 )
关键词
偶极子云团
有效干扰截面积
自由空间
dipole cloud effective jamming volume effective jamming cross section
