基于微波光子学的高功率微波测量

High power microwave measurement based on microwave photonics

高功率微波(HPM)测量诊断技术是HPM技术研究的一项重要内容。针对HPM测量的现实需求,研究采用微波光子技术建立测量系统,阐述了系统测量原理,并通过仿真对测量系统的性能进行了分析。设计的测量系统采用超宽带、大动态的电光调制器和光电检测器,利用光纤进行远距离遥控测量,消除辐射和传导干扰,最终可达到40GHz的测量带宽和100dB/Hz^(2/3)的无杂散动态范围。

The high power microwave(HPM)measurement diagnoses technology is an important content of the study of HPM technology.For the realistic demand,the study found a measurement system using the microwave photonics technology,expatiating the elements of the system,and analysing the performance of the measurement system via simulation.The measurement system uses the ultra-wideband large-dynamic Mach-Zehnder-modulator and photodetector,uses the optical fiber to carry on the remote telecontrol measurement,thus to avoid the radiation and transmission interference,and finally the measurement bandwidth can be achieved 40 GHz and the spurious free dynamic range(SFDR)can be achieved 100dB/Hz^(2/3).