抗干扰大动态射频接收技术研究  

Research of Receiving Technology for Anti-jamming and Large-dynamic-range

作　　者：张波[1] 张翼[1] 李兵[1] 杨超越[1] 李斌[1] 

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2015年第4期70-74,共5页Space Electronic Technology

摘　　要：文章介绍了星载抗干扰高灵敏度大动态接收技术的作用和原理,给出了大动态范围接收技术、智能强干扰抑制,及非线性谐振射频抗干扰三项关键技术的实现方案,并设计了L波段接收机对方案进行验证。仿真及实际测试结果表明:整个接收系统噪声系数<1.5d B,接收信号动态范围为-20d Bm^-120d Bm,输出干信比>14d B。This paper introduces the theory and function of anti-jamming, high sensitivity and large-dynamic receiving technology in satellite. The implementation proposal for three key technologies including large-dynamic-range receiving tech- nology, intelligent strong interference suppression, and nonlinear resonant RF anti-jamming were presented. An L-band re- ceiver is designed to validate the proposal. Simulation and experimental results indicate noise figure of the receiving system is less than 1.5dB, dynamic range of the receiving sir, hal is -20dBm ~ -120dBm, and output jamming-to-signal ratio is greater than 14dB.

关 键 词：抗干扰 大动态 接收技术 

分 类 号：TN386[电子电信—物理电子学]