摘要
分析了LEO卫星系统对自适应调零天线的需求,针对地基干扰站对LEO卫星实施大功率阻塞式干扰的可行性进行了量化分析。在星载多波束天线的应用背景下,提出了适合LEO卫星的自适应调零天线的构架,给出了系统框图,并对相关问题进行了分析讨论。在此基础上,提出了凝视干扰波束的概念,极大地简化了LEO卫星调零天线在干扰调零后的波束重组的过程,并给出了波束重组过程的示意图。
The requirement of adaptive nulling antenna by LEO satellite is analyzed.Quantitative analysion on the feasibility of powerful blocking jamming by ground-based jamming station on LEO satellite is implemented.In the application background of multi-beam antenna on satellites,the framework of adaptive nulling antenna suitable to LEO satellite is proposed,the system diagram is given,some related issues are analyzed and discussed.Based on these,the concept of staring-jamming beam is proposed,which could greatly simplify the beam reconstruction after LEO satellite nulling the jamming source.Finally,schematic diagram of beam reconstruction process is given in this paper.
出处
《通信技术》
2010年第6期60-63,67,共5页
Communications Technology
基金
上海市自然科学基金(编号:09ZR1430400)
