CAJ | 학술논문

鉴于天空双基地雷达在兼顾单基地天基预警雷达的优势的同时能克服其信噪比偏低的缺点，在单基地天基预警雷达的基础上，对天空双基地雷达的几何模型、雷达距离方程及相关概念等方面进行了分析。然后综合考虑信号衰减、接收信噪比以及距离模糊等方面因素，对系统的载频、卫星轨道高度和脉冲重复频率等参数进行了设计。最后进行了仿真验证。理论分析和仿真结果表明：信号信噪比能达到可检测水平，且无距离模糊。
감우천공쌍기지뢰체재겸고단기지천기예경뢰체적우세적동시능극복기신조비편저적결점，재단기지천기예경뢰체적기출상，대천공쌍기지뢰체적궤하모형、뢰체거리방정급상관개념등방면진행료분석。연후종합고필신호쇠감、접수신조비이급거리모호등방면인소，대계통적재빈、위성궤도고도화맥충중복빈솔등삼수진행료설계。최후진행료방진험증。이론분석화방진결과표명：신호신조비능체도가검측수평，차무거리모호。
Considering that the space-based bistatic radar (SBBR) could hit off a fault of the lower SNR while owning the advantages of single base space-based early warning radar, this paper analyzes a geometric model, radar range equation and other related conception of the SBBR, based on the single base space-based early warning radar, designs the system’s carrier frequency, the altitude of satellite orbit, the pulse repetition frequency and other parameters by considering overall the factors of signal decaying, SNR of reception, range ambiguity and others, and finally performs the simulation and verification. By theoretical analysis and simulation results, it is shown that the required signal SNR can be up to the detectable level without range ambiguity.