实时分析带宽和全捕获最小脉宽幅度比校准方法的研究  

Research on Calibration Method for Real-Time Bandwidth Analysis and Full-Capture Minimum Pulse Width-Amplitude Ratio

作　　者：聂梅宁[1] 李兰兰 高鸿莹 田飞[1] 张子龙[1] 何昭[1] NIE Meining;LI Lanlan;GAO Hongying;TIAN Fei;ZHANG Zilong;HE Zhao(National Institute of Metrology,Beijing 100029,China)

机构地区：[1]中国计量科学研究院,北京100029

出　　处：《计量科学与技术》2022年第7期13-17,27,共6页Metrology Science and Technology

摘　　要：监测射频信号的实时变化并对其进行分析和测量,对优化信号频谱利用效率具有关键作用。实时频谱分析仪利用数字荧光分析技术实现对时变信号观察、测量和分析,成为了监测瞬变信号的重要手段。介绍了实时频谱分析仪的基本技术原理,研究并提出了实时分析带宽和全捕获最小脉宽幅度比的校准方法。根据实时频谱分析仪的主要功能特点,对实时分析带宽、全捕获最小脉宽幅度比的校准方法进行了实验验证,并对其进行了不确定度分析和评定。Monitoring, analyzing, and measuring the real-time change of radio frequency(RF) signal plays a key role in optimizing signal spectrum efficiency. Real-time spectrum analyzers use digital fluorescence analysis technology to observe,measure and analyze time-varying signals, which have become an important means to monitor transient signals. In this paper, the key technical principle of the real-time spectrum analyzer is introduced, and the calibration methods for real-time bandwidth analysis and full-capture minimum pulse width-amplitude ratio are studied and proposed. According to the main functional characteristics of the real-time spectrum analyzer, the calibration methods of real-time bandwidth analysis and full-capture minimum pulse width-amplitude ratio are experimentally verified, and the uncertainty analysis and evaluation are carried out.

关 键 词：射频信号 实时频谱分析仪 实时分析带宽 全捕获最小脉宽幅度比 校准方法 

分 类 号：TN925[电子电信—通信与信息系统]