本文選題：寬帶柔性轉(zhuǎn)發(fā)器 + 多相濾波器組　； 參考：《南京理工大學(xué)》2015年碩士論文

【摘要】：隨著通信體制由傳統(tǒng)向現(xiàn)代轉(zhuǎn)型發(fā)展,衛(wèi)星通信在全球通信系統(tǒng)中已起到舉足輕重的作用[1]。初期的衛(wèi)星通信體系是由單星構(gòu)成,隨著美國率先使用多星星座進(jìn)行數(shù)據(jù)通信,衛(wèi)星通信系統(tǒng)開始逐漸由單業(yè)務(wù)、單波束、單頻點(diǎn)向復(fù)雜任務(wù)、多波束、寬頻段、多信道發(fā)展[2]。這種發(fā)展趨勢促使了柔性轉(zhuǎn)發(fā)器的產(chǎn)生。作為一種能實(shí)現(xiàn)寬帶信號(hào)在軌重構(gòu)與柔性轉(zhuǎn)發(fā)的衛(wèi)星載荷設(shè)備,柔性轉(zhuǎn)發(fā)器既具有彎管式轉(zhuǎn)發(fā)器的靈活性,又具有再生式轉(zhuǎn)發(fā)器對系統(tǒng)資源的高利用率。本文提出了一類新型的數(shù)據(jù)轉(zhuǎn)發(fā)星上載荷設(shè)備的設(shè)計(jì)方法。它同時(shí)具有將寬帶數(shù)據(jù)信道化,以及利用交換網(wǎng)絡(luò)對信道化后數(shù)據(jù)進(jìn)行透明轉(zhuǎn)發(fā)的能力,稱之為寬帶柔性轉(zhuǎn)發(fā)器。該轉(zhuǎn)發(fā)器參考了美軍的“WGS”星座上的轉(zhuǎn)發(fā)器技術(shù),并借鑒多相濾波器組技術(shù)設(shè)計(jì)實(shí)現(xiàn)了星上多路寬帶信號(hào)的分析和綜合,利用電路交換技術(shù)實(shí)現(xiàn)了多路信道化后信號(hào)之間任意頻段、任意波束、任意子帶之間的交換。論文重點(diǎn)研究了寬帶柔性轉(zhuǎn)發(fā)器中的交換系統(tǒng),利用高速數(shù)據(jù)處理技術(shù)與“T-S-T”數(shù)字交換網(wǎng)絡(luò)結(jié)構(gòu)設(shè)計(jì)了整個(gè)交換系統(tǒng)。在硬件方面選用了Xilinx公司生產(chǎn)的Virtex4系列芯片設(shè)計(jì)系統(tǒng)的實(shí)現(xiàn)方案,過程中使用了包括Serdes高速接口在內(nèi)的多種內(nèi)核編寫Verilog HDL程序,采用Modelsim對程序進(jìn)行前仿真。與此同時(shí)也在Matlab上對“T-S-T”路由算法進(jìn)行仿真驗(yàn)證。最后將設(shè)計(jì)出的硬件成品與其他外圍設(shè)備聯(lián)合調(diào)試,分析聯(lián)合調(diào)試中所獲得的結(jié)果可以對整個(gè)設(shè)計(jì)方案的功能與性能進(jìn)行驗(yàn)證。論文最后對全文做出總結(jié),在現(xiàn)有研究內(nèi)容與成果的基礎(chǔ)上,提出了作者將來的研究方向和期望。
[Abstract]:With the development of communication system from traditional to modern, satellite communication has played an important role in global communication system.The initial satellite communication system was composed of single satellite. With the first use of multi-star constellation for data communication in the United States, satellite communication system began to develop gradually from single service, single beam, single frequency point to complex mission, multi-beam, broadband band, multi-channel development [2].This kind of development trend promoted the production of flexible transponder.As a kind of satellite payload equipment which can reconstruct and transmit wideband signals in orbit, flexible transponder has not only the flexibility of curved tube transponder, but also the high utilization ratio of regenerative transponder to system resources.In this paper, a new design method of onboard load equipment for data forwarding is presented.It also has the ability of channelization of broadband data and transparent forwarding of channelized data using switching networks, which is called wideband flexible transponder.The transponder refers to the transponder technology of the "WGS" constellation of the US military, and uses the polyphase filter bank technology to design and synthesize the multi-channel broadband signal on board.The circuit switching technique is used to realize the switching of any frequency band, any beam and any sub-band between signals after multichannel channelization.The switching system in the wideband flexible transponder is studied in this paper, and the whole switching system is designed by using the high-speed data processing technology and the "T-S-T" digital switching network structure.In the aspect of hardware, the design scheme of Virtex4 series chip system produced by Xilinx company is selected. In the process, many kinds of kernel including Serdes high speed interface are used to write Verilog HDL program, and Modelsim is used to simulate the program.At the same time, the "T-S-T" routing algorithm is simulated on Matlab.Finally, the designed hardware is debugged jointly with other peripheral equipments, and the results obtained in the joint debugging can verify the function and performance of the whole design scheme.At the end of the paper, the author's future research direction and expectation are put forward on the basis of the existing research contents and achievements.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TN927.2

【參考文獻(xiàn)】

相關(guān)期刊論文 前7條

1 孫國營;李云杰;高梅國;胡光麗;;基于濾波器組的數(shù)字射頻存儲(chǔ)系統(tǒng)[J];北京理工大學(xué)學(xué)報(bào);2011年11期

2 燕慧英;時(shí)永鵬;王松德;;基于MATLAB數(shù)字交換網(wǎng)絡(luò)的仿真[J];大眾科技;2009年01期

3 吳長奇;田園;韓秀峰;;極低信噪比大多普勒頻移條件下基于雙譜實(shí)現(xiàn)載頻提取[J];電子技術(shù);2009年08期

4 嚴(yán)敬,邱智亮;大容量路由器交換網(wǎng)絡(luò)結(jié)構(gòu)的研究[J];電子科技;2004年12期

5 張子敬,焦李成;余弦調(diào)制濾波器組的原型濾波器設(shè)計(jì)[J];電子與信息學(xué)報(bào);2002年03期

6 陶林;;針對通信技術(shù)的發(fā)展方向進(jìn)行分析[J];中國科技投資;2013年14期

7 王洪劍,彭思龍;基于柵格結(jié)構(gòu)的正交小波濾波器組逼近方法[J];計(jì)算機(jī)輔助設(shè)計(jì)與圖形學(xué)學(xué)報(bào);2005年07期

相關(guān)碩士學(xué)位論文 前1條

1 薛騰;空間信息網(wǎng)絡(luò)星上交換調(diào)度機(jī)制和無線帶寬分配機(jī)制研究[D];國防科學(xué)技術(shù)大學(xué);2010年

，

本文編號(hào)：1752883