等离子体电磁信号多维度特征测量系统研究

Research on multi-dimensional characteristic measurement system of plasma electromagnetic signal

摘要:

为进一步研究等离子体鞘套特性及其对电磁波传输的影响，研制等离子体电磁信号多维度特征测量系统。系统可在地面实验环境中对高速目标等离子体下通信信号进行多维度特征测量，分析信号传输衰减、相位畸变等特性。系统完成Ka测控通信频段等离子体透射测量实验，验证多维度特征测量系统宽带测量、大动态微弱信号的检测能力。对采集的数据进行分析，初步验证等离子体对通信信号的衰减和相位特性的影响。

Abstract:

To further study the characteristics of plasma sheath and its influence on electromagnetic wave transmission, the project developed a multi-dimensional characteristic measurement system for plasma electromagnetic signals, the system can be used to measure the multi-dimensional characteristic of communication signals under high-speed target plasma, analyze signal attenuation, phase distortion and other characteristics. The system has completed the plasma transmission measurement experiment in Ka frequency band, which verifies the capability of the multi-dimensional feature measurement system for broadband measurement and detection of large dynamic weak signals. The collected data were analyzed, and the influence of plasma on the attenuation and phase characteristics of communication signal was preliminarily verified.