【摘要】：微波反射成像診斷主要是在微波反射診斷和準(zhǔn)光學(xué)成像理論基礎(chǔ)之上發(fā)展起來(lái)的,主要用于測(cè)量等離子體一維、二維或三維磁流體不穩(wěn)定性以及電子密度擾動(dòng)。此技術(shù)的基本原理是通過(guò)探測(cè)在等離子體中與電子密度密切相關(guān)的截止層來(lái)獲得電子密度在截止層面上的空間分布信息。密度擾動(dòng)的數(shù)據(jù)可以由從虛擬截止層反射回的反射波的相位擾動(dòng)來(lái)得到。微波反射成像技術(shù)是診斷聚變等離子體的密度擾動(dòng)的一項(xiàng)新的技術(shù)。但是,在微波反射成像信號(hào)處理方面尚未提出明確信號(hào)反演方法。本文針對(duì)微波反射成像數(shù)據(jù)處理方面做深入而系統(tǒng)的研究。本文首先簡(jiǎn)單地介紹了微波反射成像系統(tǒng)的發(fā)展歷程和現(xiàn)狀,然后闡述了微波反射成像系統(tǒng)的基本原理。介紹了微波反射成像診斷等離子體密度擾動(dòng)的基本理論和多普勒效應(yīng)基本原理,結(jié)合兩者理論,推導(dǎo)出微波反射成像信號(hào)反演的算法,同時(shí)也推導(dǎo)出微波反射成像實(shí)驗(yàn)數(shù)據(jù)分析的算法。基于微波反射成像信號(hào)反演的算法和微波反射成像實(shí)驗(yàn)數(shù)據(jù)分析的算法,利用QT技術(shù)設(shè)計(jì)并開(kāi)發(fā)出微波反射成像數(shù)據(jù)處理軟件。此軟件設(shè)計(jì)主要包括UI界面設(shè)計(jì)、數(shù)據(jù)采集、數(shù)據(jù)計(jì)算、數(shù)據(jù)顯示、數(shù)據(jù)分析五大模塊。最后,利用聚變等離子體微波反射成像系統(tǒng)的實(shí)驗(yàn)平臺(tái)對(duì)微波反射成像數(shù)據(jù)處理軟件進(jìn)行測(cè)試,并對(duì)實(shí)驗(yàn)結(jié)果進(jìn)行分析,驗(yàn)證了微波反射成像信號(hào)反演算法的正確性。
[Abstract]:Microwave reflection imaging diagnosis is mainly based on microwave reflection diagnosis and quasi-optical imaging theory. It is mainly used to measure one-dimensional, two-dimensional or three-dimensional magnetic fluid instability and electron density disturbance. The basic principle of this technique is to obtain the spatial distribution information of electron density at the cutoff level by detecting the cutoff layer closely related to electron density in plasma. The data of density perturbations can be obtained from phase perturbations of reflected waves reflected from virtual cutoff layers. Microwave reflection imaging is a new technique to diagnose density disturbance of fusion plasma. However, there is no clear signal inversion method in microwave reflection imaging signal processing. In this paper, the data processing of microwave reflection imaging is studied deeply and systematically. In this paper, the development history and present situation of microwave reflection imaging system are introduced briefly, and then the basic principle of microwave reflection imaging system is expounded. In this paper, the basic theory of microwave reflection imaging for diagnosing plasma density disturbance and the basic principle of Doppler effect are introduced. Combined with the two theories, the inversion algorithm of microwave reflection imaging signal is deduced. At the same time, an algorithm for analyzing the experimental data of microwave reflection imaging is derived. Based on the algorithm of microwave reflection imaging signal inversion and the analysis algorithm of microwave reflection imaging experimental data, the data processing software of microwave reflection imaging is designed and developed by using QT technology. The software design includes five modules: UI interface design, data acquisition, data calculation, data display and data analysis. Finally, the data processing software of microwave reflection imaging is tested on the experimental platform of fusion plasma microwave reflection imaging system, and the experimental results are analyzed to verify the correctness of the inversion algorithm of microwave reflection imaging signal.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TP274;TN015

【相似文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 聶濤;聚變等離子體微波反射成像系統(tǒng)數(shù)據(jù)處理算法研究[D];電子科技大學(xué);2015年

，

本文編號(hào)：2119075