箔条云回波的功率损失率研究  

Research on the echo power losing ratio of chaff cloud

作　　者：张领军[1] 韩卫国[1] 刘镝[1] 刘富强[1] 李玉山[2] 

机构地区：[1]中国人民解放军驻秦皇岛部队,河北秦皇岛066001 [2]西安电子科技大学电路CAD所,陕西西安710071

出　　处：《西安电子科技大学学报》2007年第5期844-848,共5页Journal of Xidian University

基　　金：国家自然科学基金资助(60672027)

摘　　要：根据箔条云假目标回波的形成机理,通过简化箔条云散布空间模型,建立了其散射功率模型.在此基础上,通过研究并实测箔条云的后向散射功率和雷达的积累效率,提出了成熟箔条云存在着后向散射损失和相参积累效率下降,使得雷达获得的箔条云实际回波功率远小于其雷达散射截面值对应的回波功率.研究了回波功率损失的相关参数,给出了其函数关系式,表明箔条云回波功率损失主要与雷达发射脉冲宽度、相参积累时间和箔条云空间尺寸、相关时间等有关.利用该关系式可方便地估算箔条云回波功率损失率.Based on the forming mechanism of the chaff cloud echo, the scattered power model of the chaff cloud is establish. It is noted that the scattered power loss and the coherent accumulation efficiency drop exist in the echo of the ripe chaff cloud. The expression for echo power losing ratio of the chaff cloud has been deduced. By comparing the estimation by this expression with the actual measurement data, the accuracy of this expression has been verified. The results in this paper can be used for the development of jamming and radar equipments.

关 键 词：箔条云 散射损失率 相参积累效率 回波功率损失率 

分 类 号：TN972[电子电信—信号与信息处理]