本文選題：波束形成器 + FPGA　； 參考：《云南大學(xué)》2012年碩士論文

【摘要】：隨著現(xiàn)代移動(dòng)通信技術(shù)的飛速發(fā)展,智能天線(xiàn)發(fā)揮著越來(lái)越重要的作用。作為智能天線(xiàn)關(guān)鍵技術(shù)的自適應(yīng)波束形成技術(shù),成為了研究的熱點(diǎn)。而自適應(yīng)波束形成技術(shù)的關(guān)鍵是自適應(yīng)算法,自適應(yīng)算法是利用數(shù)學(xué)模型描述自適應(yīng)過(guò)程的算法。自適應(yīng)算法可以利用硬件或軟件兩種方法實(shí)現(xiàn)。所謂的硬件實(shí)現(xiàn)是根據(jù)所選算法的計(jì)算過(guò)程進(jìn)行電路的設(shè)計(jì)。自適應(yīng)算法有很多,選擇合適的自適應(yīng)算法很重要,它決定了設(shè)計(jì)系統(tǒng)的性能。本文選取了SLC-LSCMA算法,該算法在收斂性方面較好。 在普通天線(xiàn)波束形成的基礎(chǔ)上,引入自適應(yīng)算法技術(shù)建立起來(lái)的自適應(yīng)波束形成技術(shù),在陣列信號(hào)處理方向發(fā)揮著關(guān)鍵作用。當(dāng)前流行的FPGA整合了常用功能,內(nèi)部資源豐富,為硬件開(kāi)發(fā)提供了良好的環(huán)境。 針對(duì)上述論述,本文以無(wú)線(xiàn)通信技術(shù)、計(jì)算機(jī)技術(shù)以及嵌入式技術(shù)為基礎(chǔ),實(shí)現(xiàn)了一種自適應(yīng)波束形成器。本文首先根據(jù)算法的標(biāo)準(zhǔn)選取了一種優(yōu)化算法,并給出了算法的基本計(jì)算過(guò)程。其次建立了完整的智能天線(xiàn)模型,重點(diǎn)對(duì)優(yōu)化的各個(gè)模塊進(jìn)行了介紹。然后采用Altera公司生產(chǎn)的Cyclone II系列EP2C35F672C6芯片為主芯片,利用QuartusⅡ作為硬件開(kāi)發(fā)平臺(tái),采用自下而上的漸進(jìn)式編譯流程對(duì)硬件電路進(jìn)行了詳細(xì)描述,繼而在頂層文件中集成各個(gè)優(yōu)化后的模塊,再進(jìn)行總體研究。最后在ModelSim SE上進(jìn)行了仿真,驗(yàn)證了該自適應(yīng)波束形成器的正確性并對(duì)系統(tǒng)進(jìn)行了評(píng)價(jià)。
[Abstract]:With the rapid development of modern mobile communication technology, smart antenna plays an increasingly important role. As the key technology of smart antenna, adaptive beamforming has become a hot topic. The key of adaptive beamforming is adaptive algorithm, which uses mathematical model to describe adaptive process. The adaptive algorithm can be implemented by hardware or software. The so-called hardware implementation is to design the circuit according to the calculation process of the selected algorithm. There are many adaptive algorithms. It is very important to select suitable adaptive algorithms, which determines the performance of the design system. In this paper, SLC-LSCMA algorithm is selected, which has good convergence. On the basis of common antenna beamforming, adaptive beamforming technique based on adaptive algorithm is introduced, which plays a key role in array signal processing. The current popular FPGA integrates common functions and rich internal resources, which provides a good environment for hardware development. Based on wireless communication technology, computer technology and embedded technology, an adaptive beamformer is implemented in this paper. This paper first selects an optimization algorithm according to the standard of the algorithm, and gives the basic calculation process of the algorithm. Secondly, a complete smart antenna model is established, and the optimized modules are introduced. Then the Cyclone II series EP2C35F672C6 chip produced by Altera Company is used as the main chip and Quartus 鈪，

本文編號(hào)：1801373