应用于超宽带雷达干扰的光学射频存储技术研究  

Study on Optical RF Memory Applying in Jamming of UWB Radar

作　　者：徐嘉鑫[1] 周涛[1] 陈吉欣[1] 

机构地区：[1]西南电子设备研究所,成都610036

出　　处：《半导体光电》2018年第4期582-585,共4页Semiconductor Optoelectronics

摘　　要：针对超宽带雷达信号复制转发式干扰应用,研究了一种基于光处理的超宽带模拟射频存储技术,相比传统的数字射频存储技术,它大幅提升了干扰源的瞬时带宽。结合对光学射频存储的理论分析结果,采用低噪声光学放大与光学自适应幅度均衡技术精确控制光纤复制环路增益,实现对采样信号的高质量、大数量的相参复制。利用可调光纤延迟技术实现拖距、拖速等干扰效果,并通过实验验证与仿真分析证明了光学射频存储技术的可行性及有效性。A UWB analog RF memory technique based on optical managing for the copy and transmission of the signal of UWB radar was proposed,the instantaneous bandwidth of jammer was greatly increased.Based on the theoretical analysis results of optical RF memory,low noise optical amplification and optical AGC were used to precisely control the link gain and achieve high quality and large number of coherent copies of sampled signals.Variable optical delay was used to achieve such effects as range deception interference and velocity deception interference,and also simulation and experiments were conducted to verify the feasibility and validity of the proposed technique.

关 键 词：光处理 射频存储 信号调制 

分 类 号：TN974[电子电信—信号与信息处理]