【摘要】 研究了复杂目标激光雷达散射截面(LRCS)与电磁波段雷达散射截面的差异,提出使用可视化技术计算复杂目标后向激光雷达散射截面的流程框图,并使用该技术对某飞机全尺寸模型进行了计算。将计算结果按缩比关系换算,得到了1∶8缩比模型的散射截面。利用标准板定标法,在外场环境对1∶8缩比模型进行了实际测量,获得了缩比模型散射截面的实验数据。对计算数据与测量数据进行了对比分析,结果表明,在目标主要散射方位,理论计算和测量结果一致;通过缩比模型的测量可以获取全尺寸目标的激光散射特性。更多还原

【Abstract】 In this paper the difference of radar cross-section between laser′s band and electromagnetic band is described. A flow chart of calculating laser radar cross-section (LRCS) of complex object with visualizing calculation method is presented, the LRCS of a full-size plane object is calculated, and the LRCS of 1∶8 scale-model is obtained by scale relation. Actual measurements were made for obtaining the LRCS of the scale-model by utilizing standard scatter board in the outfield. The results show that the calculation data are agreement with measurements on main scatter direction of object and the scattering characteristic of full size object can be achieved by scale-model measurement.更多还原