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作 者:赵云[1] 刘国栋[1] 陈蓓 郑淑梅[1] 孙志刚[1] ZHAO Yun;LIU Guodong;CHEN Bei;ZHENG Shumei;SUN Zhigang(The 54th Research Institute of CETC,Shijiazhuang 050081,China)
机构地区:[1]中国电子科技集团公司第五十四研究所,河北石家庄050081
出 处:《无线电工程》2021年第7期568-572,共5页Radio Engineering
基 金:国家部委基金资助项目。
摘 要:针对无人机测控高动态目标的角度引导捕获问题,提出了基于异频双链路测控系统的双跟踪高动态目标角捕获方法,利用循环谱分析方法可对窄带遥测信号、宽带数传信号等进行低信噪比检测,通过宽波束天线提高捕获概率,同时又通过高天线增益满足信噪比的需求。验证结果表明,异频双链路天线跟踪系统伺服捕获概率、信号检测概率仿真结果满足高动态目标角捕获需求。To solve the problem of high dynamic target angle guiding and acquisition in UAV TT&C systems,a method based on two kinds of tracking sub-system in UAV TT&C systems of double data links is proposed.By cyclic spectrum analysis,the narrowband telemetry signal and the wideband data transmission signal can be detected with low SNR.The proposed method can improve the acquisition probability by using wide beam,and provide the high antenna gain required for the SNR.The simulation based on the servo acquisition and signal detection probability shows that the proposed method can meet the requirement of angle acquisition for high dynamic target.
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