用非相干光纤马-泽微波光子结构实现瞬时测频  

Measuring Microwave Frequency Instantaneously with Incoherent Fiber M-Z Photonic Structure

作　　者：王旭[1] 胡总华[1] 冯志荣[1] 王全辉[1] 陈秀丽[1] 

机构地区：[1]河南师范大学物理与信息工程学院,河南新乡453007

出　　处：《现代雷达》2011年第11期37-39,共3页Modern Radar

摘　　要：在复杂的电磁环境下,传统的微波瞬时测频方法面临严峻的挑战,难以满足现代电子战的需要。近年来,利用微波光子学方法,能够克服电子学方法瞬时测频带宽窄的瓶颈,且系统体积小,抗干扰能力强。针对全频段频率测量,采用非相干光纤马-泽结构,通过对光纤马-泽臂长差和两耦合器耦合系数的选取,得到了较好线性度和较大斜率的幅度比较函数曲线,实现了雷达微波信号0～40 GHz的全频段测量,仿真分析验证了该方法的可行性和有效性。Due to the complex electromagneti,a environment, the traditional methods of the instantaneous frequency measurement are facing challenges severely to meet the need of modern electronic warfare. In recent years, microwave photonics has been explored as a means to overcoming the bandwidth limitations of the electronics technology, and obtaining a small compact structure and strong anti-interference ability. For full-band frequency measurement, an optical fiber Incoherent mach-zehnder structure is employed as the microwave photonics method to measure microwave frequency instantaneously. The amplitude comparison function with better linearity and greater slope are obtained, and the full-band measurement of 0 GHz - 40 GHz is achieved. The simulation and analysis demonstrate the feasibility and effectiveness.

关 键 词：瞬时测频 微波光子技术 电子对抗 

分 类 号：TN015[电子电信—物理电子学] TN97