现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
15期
58-61
,共4页
自适应波束形成%主瓣干扰%主天线%辅助天线%主瓣波束保形
自適應波束形成%主瓣榦擾%主天線%輔助天線%主瓣波束保形
자괄응파속형성%주판간우%주천선%보조천선%주판파속보형
adaptive beam-forming%main lobe interference%main antenna%auxiliary antenna%main lobe beam shape-pre-serving
为了保证通信卫星在人为电磁干扰及复杂电磁环境下的正常工作,利用主天线和辅助天线相互配合的思想调整相控阵天线阵元的初始静态权值,通过带有主波束保形的调零算法来对多个干扰实现有效抑制的同时达到波束主瓣保形的目的,即保证在主瓣干扰处准确形成较深的零陷时,主瓣内其他方向上波束方向图与静态方向图尽可能相似。这样可以保证通信时有效地抑制电磁干扰,同时尽量减少对周围服务区域通信质量的影响,并通过仿真验证了这种方法的有效性。
為瞭保證通信衛星在人為電磁榦擾及複雜電磁環境下的正常工作,利用主天線和輔助天線相互配閤的思想調整相控陣天線陣元的初始靜態權值,通過帶有主波束保形的調零算法來對多箇榦擾實現有效抑製的同時達到波束主瓣保形的目的,即保證在主瓣榦擾處準確形成較深的零陷時,主瓣內其他方嚮上波束方嚮圖與靜態方嚮圖儘可能相似。這樣可以保證通信時有效地抑製電磁榦擾,同時儘量減少對週圍服務區域通信質量的影響,併通過倣真驗證瞭這種方法的有效性。
위료보증통신위성재인위전자간우급복잡전자배경하적정상공작,이용주천선화보조천선상호배합적사상조정상공진천선진원적초시정태권치,통과대유주파속보형적조령산법래대다개간우실현유효억제적동시체도파속주판보형적목적,즉보증재주판간우처준학형성교심적령함시,주판내기타방향상파속방향도여정태방향도진가능상사。저양가이보증통신시유효지억제전자간우,동시진량감소대주위복무구역통신질량적영향,병통과방진험증료저충방법적유효성。
In order to ensure the telecommunication satellites to work well in artificial electromagnetic interference and com-plex electromagnetic environment,a novel beam-nulling method which utilizes cooperation of the main antenna and auxiliary an-tenna to initialize the adaptive weight of phase array antenna,which keeps the shape of the main lobe,is presented in this pa-per to achieve the effective suppression to jamming and main lobe shape-preserving. The beam directional pattern in the other di-rections inside the main lobe and static directional pattern should be made as similar as possible while ensuring the forming of the deep nulling at the interference place of main lobe. In this way,the effective suppression to electromagnetic interference during the communication can be guaranteed while minimizing the impact on the surrounding area communication quality of ser-vice. The effectiveness of the method was demonstrate by simulation.