【摘要】：任意波形發(fā)生器用于產(chǎn)生各種制式的發(fā)射信號(hào)或者測(cè)試信號(hào),在雷達(dá)、航天等領(lǐng)域具有重要的作用。傳統(tǒng)的信號(hào)發(fā)生器是基于模擬電子技術(shù)的,并且波形通常是規(guī)則的。在現(xiàn)代電子系統(tǒng)中,要求能現(xiàn)場(chǎng)輸出任意形式的信號(hào),所以任意波形發(fā)生器就具有了重要的研究和應(yīng)用價(jià)值。論文將直接數(shù)字頻率合成技術(shù)、數(shù)字正交上變頻技術(shù)和高速串行數(shù)據(jù)傳輸技術(shù)結(jié)合在一起,以現(xiàn)場(chǎng)可編程門(mén)陣列和正交上變頻芯片AD9957為硬件基礎(chǔ),通過(guò)系統(tǒng)硬件電路設(shè)計(jì)和軟件編程,完成了任意波形發(fā)生器的設(shè)計(jì)與實(shí)現(xiàn)。首先,論文分析了DDS原理和數(shù)字正交調(diào)制原理,對(duì)DDS輸出的頻譜和相位舍入引起的雜散進(jìn)行了推導(dǎo),闡述了一種工程上容易實(shí)現(xiàn)并且性能較好的積分級(jí)聯(lián)梳狀(CIC)濾波器。基于任意波形發(fā)生器理論,深入研究了數(shù)字正交上變頻器AD9957的芯片架構(gòu)、三種工作模式以及內(nèi)部信號(hào)處理鏈路。其次,論文給出了任意波形發(fā)生器的硬件電路設(shè)計(jì)和軟件編程實(shí)現(xiàn)。在硬件設(shè)計(jì)中,完成了電源網(wǎng)絡(luò)、AD9957應(yīng)用電路以及光纖通信接口的設(shè)計(jì)。在FPGA軟件編程中,完成了AD9957功能配置模塊和光纖通信模塊的設(shè)計(jì),并對(duì)QDUC模式下,基帶數(shù)據(jù)接收處理的方法進(jìn)行了詳細(xì)的說(shuō)明。最后,論文給出了系統(tǒng)的調(diào)試結(jié)果,包括光纖通信測(cè)試和AD9957的調(diào)試。在光纖通信調(diào)試中,驗(yàn)證了光纖收發(fā)數(shù)據(jù)的功能并對(duì)數(shù)據(jù)誤碼進(jìn)行了測(cè)試。在AD9957的測(cè)試中,對(duì)其單音模式、插值DAC模式以及QDUC模式都進(jìn)行了調(diào)試,給出了正弦信號(hào)、線(xiàn)性調(diào)頻信號(hào)和調(diào)幅信號(hào)的波形測(cè)試圖和頻譜測(cè)試圖,計(jì)算了實(shí)際輸出信號(hào)與設(shè)定信號(hào)的誤差,測(cè)試結(jié)果表明該任意波形發(fā)生器具有輸出信號(hào)頻率高、誤差小、信號(hào)更新快等特點(diǎn)。
[Abstract]:Arbitrary waveform generator is used to generate various transmission signals or test signals, which plays an important role in radar, aerospace and other fields. Traditional signal generators are based on analog electronics, and waveforms are usually regular. In modern electronic system, it is required to output any form of signal in the field, so arbitrary waveform generator has important research and application value. This paper combines direct digital frequency synthesis technology, digital orthogonal up-conversion technology and high-speed serial data transmission technology, and takes field programmable gate array and orthogonal up-conversion chip AD9957 as the hardware foundation. Through the system hardware circuit design and software programming, the design and implementation of arbitrary waveform generator are completed. Firstly, the principle of DDS and the principle of digital quadrature modulation are analyzed, the spurious caused by frequency spectrum and phase rounding of DDS output is deduced, and a kind of integrated cascaded comb (CIC) filter which is easy to realize in engineering and has better performance is described. Based on the theory of arbitrary waveform generator, the chip architecture, three working modes and internal signal processing link of AD9957 digital quadrature upconverter are studied. Secondly, the paper gives the hardware circuit design and software programming of arbitrary waveform generator. In the hardware design, the application circuit of power network AD9957 and the optical fiber communication interface are designed. In the FPGA software programming, the AD9957 function configuration module and the optical fiber communication module are designed, and the method of receiving and processing the baseband data in QDuc mode is explained in detail. Finally, the debugging results of the system are given, including optical fiber communication test and AD9957 debugging. In the debugging of optical fiber communication, the function of receiving and sending data in optical fiber is verified and the error code of data is tested. In the test of AD9957, the single tone mode, interpolation DAC mode and QDuc mode are all debugged, and the waveform test diagram and spectrum test diagram of sinusoidal signal, linear frequency modulation signal and amplitude modulation signal are given. The error between the actual output signal and the set signal is calculated. The test results show that the arbitrary waveform generator has the characteristics of high output signal frequency, small error and fast signal updating.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TN741

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李曉昌;翟正軍;黃夢(mèng)玲;;基于FPGA的高速收發(fā)器研究與設(shè)計(jì)[J];測(cè)控技術(shù);2015年04期

2 劉平英;李紅婷;梁旭東;徐軍;;基于DDS數(shù)字直接合成技術(shù)信號(hào)發(fā)生器設(shè)計(jì)[J];中國(guó)科技信息;2014年24期

3 吳征;蘇淑靖;;基于FPGA+PWM的多路信號(hào)發(fā)生器設(shè)計(jì)[J];電子技術(shù)應(yīng)用;2014年03期

4 任青蓮;高文華;郭萍;;三階PLL無(wú)源環(huán)路濾波器的設(shè)計(jì)與仿真[J];四川兵工學(xué)報(bào);2014年02期

5 韓霜;;泰克AWG70000任意波形發(fā)生器滿(mǎn)足高標(biāo)準(zhǔn)信號(hào)發(fā)生需要[J];世界電子元器件;2013年04期

6 ;泰克AWG70000:助力高速測(cè)試應(yīng)用和高級(jí)研究[J];通訊世界;2013年06期

7 佟景泉;劉悅;邢東峰;;基于FPGA的DDS設(shè)計(jì)與實(shí)現(xiàn)[J];鐵路計(jì)算機(jī)應(yīng)用;2012年03期

8 湯文亮;;基于CORDIC算法的高速高精度DDS研究與實(shí)現(xiàn)[J];制造業(yè)自動(dòng)化;2011年05期

9 王國(guó)裕;謝官云;陸明瑩;張紅升;;基于FPGA的數(shù)字正交上變頻研究與實(shí)現(xiàn)[J];無(wú)線(xiàn)通信技術(shù);2011年01期

10 楊蕾;;基于DDS的高碼速率遙感衛(wèi)星模擬信號(hào)頻綜源設(shè)計(jì)與實(shí)現(xiàn)[J];電子器件;2009年06期

相關(guān)碩士學(xué)位論文 前5條

1 于偉龍;基于AD9957的信號(hào)發(fā)生器的設(shè)計(jì)[D];哈爾濱工業(yè)大學(xué);2014年

2 朱正毅;高速串行互連技術(shù)研究[D];西安電子科技大學(xué);2014年

3 吳賀;多通道數(shù)字光電轉(zhuǎn)換系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)[D];西安電子科技大學(xué);2013年

4 袁秋香;高性能CPU中高速接口IP核的DFT集成設(shè)計(jì)和驗(yàn)證[D];國(guó)防科學(xué)技術(shù)大學(xué);2012年

5 高望;直接數(shù)字頻率合成技術(shù)及其雜散分析[D];南京理工大學(xué);2002年

，

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