本文關(guān)鍵詞： 短距離無線數(shù)傳 BPSK 2FSK 基帶芯片 FPGA　出處：《西安電子科技大學》2014年碩士論文　論文類型：學位論文

【摘要】：隨著無線數(shù)字通信技術(shù)大發(fā)展的趨勢,短距離無線數(shù)傳技術(shù)憑借其功耗低,面積小,成本低廉以及實現(xiàn)簡單的優(yōu)點,已經(jīng)在社會生活的方方面面都起到了重要的作用。比如在消費類電子、家庭電器自動化、工業(yè)自動控制以及醫(yī)學應(yīng)用等許多領(lǐng)域都有著非常廣泛的應(yīng)用。在對短距離無線數(shù)傳技術(shù)領(lǐng)域的研究中,國外起步的非常早,像德州儀器、英特爾等各大芯片設(shè)計制造商都已經(jīng)掌握了成熟的短距離無線數(shù)傳芯片設(shè)計技術(shù),并相繼推出了相應(yīng)的產(chǎn)品。在國內(nèi),這方面的研究還不像國外那么成熟,因此,研究具有自主知識產(chǎn)權(quán)的短距離無線數(shù)傳IP基帶芯片已經(jīng)迫在眉睫。BPSK和2FSK作為常用的短距離無線數(shù)字通信制式,雖然比較傳統(tǒng),但是憑借其優(yōu)良的抗噪聲性能以及簡單的實現(xiàn)原理,依然在無線通信領(lǐng)域占有一席之地。本文根據(jù)課題組科研項目,設(shè)計一款基于BPSK和2FSK制式的短距離無線數(shù)傳IP基帶芯片,介紹了無線數(shù)字通信系統(tǒng)的具體實現(xiàn)過程,并對其中一些關(guān)鍵問題的解決做了詳細的說明和分析。本文的重點包括以下幾個方面:1)對于BPSK和2FSK無線數(shù)字通信原理進行了簡要的概述,并探討了濾波技術(shù)和正交混頻技術(shù)等在無線數(shù)字通信系統(tǒng)的設(shè)計中比較重要的基礎(chǔ)理論。2)介紹了整個通信芯片系統(tǒng)的算法設(shè)計思路。在數(shù)字變頻系統(tǒng)的基礎(chǔ)上,BPSK著重講述了碼元定時同步和載波同步這兩個對性能影響比較重要的模塊,而2FSK則采用一種了較新穎的調(diào)制解調(diào)方法。3)在Matlab仿真平臺下搭建了整個系統(tǒng)的數(shù)學模型,并進行定點仿真,通過仿真結(jié)果檢查算法設(shè)計的可行性,并通過對噪聲環(huán)境的模擬進行了誤碼率的仿真,證明算法在功能和性能兩個方面均能達到要求。4)采用QuartusⅡ和Modelsim的聯(lián)合仿真環(huán)境將算法進行RTL實現(xiàn),并通過前仿真驗證電路設(shè)計的正確性。利用FPGA對整個系統(tǒng)進行了原型驗證,為后續(xù)的芯片后端工作奠定了基礎(chǔ)。最后進行芯片的后端工作,完成了邏輯綜合和版圖設(shè)計。本文圍繞上述工作,對整個芯片系統(tǒng)從算法設(shè)計到電路架構(gòu)做了全方位的介紹。從總體設(shè)計方案到模塊設(shè)計細節(jié),說明了設(shè)計過程中遇到的問題和相應(yīng)的解決方法。
[Abstract]:With the development of wireless digital communication technology, short-range wireless data transmission technology has the advantages of low power consumption, small area, low cost and simple implementation. Has played an important role in all aspects of social life, such as consumer electronics, home appliances automation, Industrial automatic control and medical applications are widely used in many fields. In the field of short-range wireless data transmission technology, foreign countries started very early, such as Texas Instruments, Intel and other major chip design manufacturers have mastered mature short-range wireless digital chip design technology, and have launched corresponding products one after another. In China, the research in this area is not as mature as abroad, so, The research of short range wireless data transmission IP baseband chip with independent intellectual property rights is imminent. BPSK and 2FSK are commonly used as short range wireless digital communication system, although it is more traditional, However, with its excellent anti-noise performance and simple implementation principle, it still occupies a place in the wireless communication field. According to the research project of our research group, this paper designs a short-range wireless data transmission IP baseband chip based on BPSK and 2FSK. The realization process of wireless digital communication system is introduced. Some key problems are explained and analyzed in detail. The emphasis of this paper includes the following aspects: 1) briefly summarize the principle of BPSK and 2FSK wireless digital communication. The basic theory of filter technology and orthogonal mixing technology in the design of wireless digital communication system is discussed. The algorithm design of the whole communication chip system is introduced. Based on the digital frequency conversion system, BPSK is introduced. In this paper, two important modules, symbol timing synchronization and carrier synchronization, which have an important impact on performance, are described. While 2FSK adopts a novel modulation and demodulation method. 3) the mathematical model of the whole system is built on the Matlab simulation platform, and the fixed-point simulation is carried out, and the feasibility of the algorithm design is checked through the simulation results. The BER simulation of noise environment shows that the algorithm can meet the requirements in both function and performance. (4) the algorithm is implemented by RTL in the joint simulation environment of Quartus 鈪，

本文編號：1518542