天基雷达距离测量误差的影响因素分析  

Analysis of Influence Factors for Range-measuring Error of Space-based Radar

作　　者：袁博资 许鹏程[1] 尹帅[1] 李珣 YUAN Bo-zi;XU Peng-cheng;YIN Shuai;LI Xun(Air Force Early Warning Academy,Wuhan 430019,China;National Industrial Information Security Development Research Center,Beijing 100040,China)

机构地区：[1]空军预警学院,湖北武汉430019 [2]国家工业信息安全发展研究中心,北京100040

出　　处：《舰船电子对抗》2021年第3期83-87,共5页Shipboard Electronic Countermeasure

摘　　要：天基雷达作为一种新体制雷达,具备探测范围广、滞空时间长、反隐身目标、不受一般反辐射武器威胁等优势,随着国家航天技术与天基载荷技术的日益发展,天基雷达的实现也逐步推进。但天基雷达仍存在若干需要解决的问题,其中之一就是探测误差问题,因天基雷达信号传输距离远,受到不同因素影响,其探测误差较大。针对不同体制的天基雷达,研究了天基雷达所特有的测距误差来源因素,包括:卫星时钟误差、卫星星历误差、电离层延时、对流层延时等。通过仿真计算分析不同因素对探测过程的具体影响。As a new system radar,space-based radar has the advantages of wide detection range,long time in the air,confronting stealth target and rejecting the threats of general anti-radiation weapons.With the development of national space technology and space-based payload technology,the realization of space-based radar is also gradually promoted.However,there are still some problems to be solved in space-based radar,one of which is the detection error.Due to the long transmission distance of space-based radar signals and the influence of different factors,the detection error is large.Aiming at the space-based radars with different systems,this paper studies the specific source factors of ranging errors of space-based radars,which includes satellite clock error,satellite ephemeris error,ionospheric delay,tropospheric delay,etc.,analyzes the specific influence of different factors on the detection process through simulating calculation.

关 键 词：天基雷达 距离误差 天空双基地雷达 天天双基地雷达 

分 类 号：TN957.51[电子电信—信号与信息处理]