基于线性调频连续波的等离子体诊断系统设计

IF 1.5 4区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

IEEE Transactions on Plasma Science Pub Date : 2025-04-16 DOI:10.1109/TPS.2025.3555270

Chao Sun;Minjian Liang;Gang Cao;Chengwei Zhao

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引用次数: 0

摘要

本研究设计了一种基于线性调频连续波（LFMCW）的等离子体诊断系统，通过确定电磁波传播延时的变化来计算电子密度。该系统采用扫描微波干涉测量方法，精确测量等离子体对传播时延的影响，解决了传统微波诊断方法中相位周期模糊的问题。本文介绍了系统的设计，包括硬件选型、信号处理流程、系统仿真等。实验表明，该系统能有效地诊断高电子密度等离子体。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Design of Plasma Diagnostic System Based on Linear Frequency-Modulated Continuous Wave

In this study, a plasma diagnostic system based on linear frequency-modulated continuous wave (LFMCW) is designed to calculate the electron density by determining the change of electromagnetic wave propagation time delay. The system adopts a swept microwave interferometry method to accurately measure the effect of plasma on the propagation time delay and solves the problem of phase-periodic ambiguity in the traditional microwave diagnostic method. This article describes the system design, including hardware selection, signal processing flow, and system simulation. Experiments show that the system can effectively diagnose high electron density plasma.

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来源期刊

IEEE Transactions on Plasma Science 物理-物理：流体与等离子体

CiteScore

3.00

自引率

20.00%

发文量

538

审稿时长

3.8 months

期刊介绍： The scope covers all aspects of the theory and application of plasma science. It includes the following areas: magnetohydrodynamics; thermionics and plasma diodes; basic plasma phenomena; gaseous electronics; microwave/plasma interaction; electron, ion, and plasma sources; space plasmas; intense electron and ion beams; laser-plasma interactions; plasma diagnostics; plasma chemistry and processing; solid-state plasmas; plasma heating; plasma for controlled fusion research; high energy density plasmas; industrial/commercial applications of plasma physics; plasma waves and instabilities; and high power microwave and submillimeter wave generation.