本文選題：微波光子學(xué) + 微波光子移相器��； 參考：《南京航空航天大學(xué)》2014年碩士論文

【摘要】：隨著未來(lái)寬帶、超寬帶通信技術(shù)的發(fā)展,信號(hào)的采樣率將不斷提高,信號(hào)傳輸帶寬激增,現(xiàn)有基于電子信號(hào)處理的通信系統(tǒng)受“電子瓶頸”的限制,面臨巨大的挑戰(zhàn)。與傳統(tǒng)的電學(xué)系統(tǒng)相比,微波光子系統(tǒng)工作頻率高、帶寬大、長(zhǎng)距離傳輸損耗小且抗電磁干擾能力強(qiáng),其將是這些挑戰(zhàn)的有效解決方法之一,因而更加受到青睞。正交振幅調(diào)制(QAM)由于其頻譜利用率高、調(diào)制/解調(diào)設(shè)備簡(jiǎn)單而在實(shí)際通信系統(tǒng)中被廣泛應(yīng)用,研究基于微波光子技術(shù)的QAM信號(hào)產(chǎn)生方法有著重要的實(shí)用價(jià)值。本文的主要工作如下:第一章論述了QAM調(diào)制信號(hào)及其發(fā)展歷史,對(duì)光學(xué)方法產(chǎn)生QAM信號(hào)和光載無(wú)線通信系統(tǒng)的研究意義和發(fā)展現(xiàn)狀進(jìn)行了闡述,并概述本文主要研究?jī)?nèi)容。第二章總結(jié)分析了微波光子QAM信號(hào)產(chǎn)生仿真和實(shí)驗(yàn)中所需的器件。首先介紹了強(qiáng)度調(diào)制器、相位調(diào)制器、偏振調(diào)制器和馬赫增德?tīng)栒{(diào)制器等幾種光電調(diào)制器;然后,對(duì)半導(dǎo)體光放大器、摻鉺光纖放大器和拉曼放大器等幾種光放大器進(jìn)行了總結(jié)與性能分析;最后,簡(jiǎn)要介紹了激光器、光纖等其他常用元器件。第三章在分析QAM信號(hào)調(diào)制原理的基礎(chǔ)上,研究了基于微波光子并聯(lián)強(qiáng)度調(diào)制和并聯(lián)偏振調(diào)制的QAM信號(hào)產(chǎn)生方案,對(duì)基于強(qiáng)度調(diào)制的4QAM和16QAM信號(hào)產(chǎn)生以及基于偏振調(diào)制的4QAM信號(hào)產(chǎn)生方案進(jìn)行了理論分析和仿真驗(yàn)證,OptiSystem軟件仿真結(jié)果分析證明了方案的有效性。第四章分析了上述方案的實(shí)驗(yàn)驗(yàn)證平臺(tái)的結(jié)構(gòu)組成及其實(shí)測(cè)結(jié)果。首先對(duì)基于偏振調(diào)制的微波光子移相器進(jìn)行了理論推導(dǎo)和分析,并對(duì)實(shí)驗(yàn)驗(yàn)證系統(tǒng)進(jìn)行了詳細(xì)的介紹,在實(shí)驗(yàn)室現(xiàn)有條件下完成了基于強(qiáng)度調(diào)制的4QAM信號(hào)的產(chǎn)生、傳輸和解調(diào)等方面的工作,實(shí)驗(yàn)結(jié)果驗(yàn)證了該方案的正確性及其潛在的應(yīng)用優(yōu)勢(shì)。第五章結(jié)束語(yǔ)對(duì)全文的工作進(jìn)行了總結(jié),并指出了下一步的研究方向。
[Abstract]:With the development of future broadband and ultra wideband communication technology, the sampling rate of signal will be improved continuously, the bandwidth of signal transmission is increasing. The existing communication system based on electronic signal processing is subject to the limitation of "electronic bottleneck", which is faced with great challenge. Compared with the traditional electrical system, the micro wave optical subsystem works with high frequency, large bandwidth and long distance transmission. Because of its low loss and strong ability to resist electromagnetic interference, it will be one of the most effective solutions to these challenges. Therefore, orthogonal amplitude modulation (QAM) is widely used in the actual communication system because of its high frequency spectrum utilization and simple modulation / demodulation equipment. It is important to study the QAM signal generation method based on the microwave photon technology. The main work of this paper is as follows: in the first chapter, the QAM modulation signal and its development history are discussed. The research significance and development status of the QAM and optical wireless communication systems produced by optical methods are expounded, and the main contents of this paper are summarized. The second chapter summarizes and analyzes the simulation and experiment of the generation of microwave photon QAM signals. The required devices. First, several photoelectric modulators, such as intensity modulator, phase modulator, polarization modulator and Machka Del modulator, are introduced. Then, several optical amplifiers, such as semiconductor optical amplifier, erbium doped fiber amplifier and Raman amplifier, are summarized and analyzed. Finally, the laser, fiber and so on are briefly introduced. In the third chapter, on the basis of the analysis of the principle of QAM signal modulation, the QAM signal generation scheme based on the microwave photonic parallel intensity modulation and parallel polarization modulation is studied. The 4QAM and 16QAM signal generation based on the intensity modulation and the 4QAM signal production scheme based on the polarization modulation are theoretically analyzed and verified, Opt The analysis of iSystem software simulation results proves the effectiveness of the scheme. In the fourth chapter, the structure and the measured results of the experimental verification platform are analyzed. Firstly, the theoretical deduction and analysis of the polarization modulation based microwave photonic phase shifter are carried out, and the experimental verification system is introduced in detail, and the existing conditions in the laboratory are given. The results of the intensity modulation based 4QAM signal generation, transmission and demodulation are completed. The experimental results verify the correctness and potential application advantages of the scheme. The end of the fifth chapter summarizes the work of the full text, and points out the direction of the next step.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TN911.3
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本文編號(hào)：2045130