【摘要】：物聯(lián)網(wǎng)技術(shù)推動了全球信息產(chǎn)業(yè)化第三次浪潮,車聯(lián)網(wǎng)作為物聯(lián)網(wǎng)產(chǎn)業(yè)中的領(lǐng)頭羊,在全球范圍內(nèi)都有十分巨大的發(fā)展前景。縱觀全球,車聯(lián)網(wǎng)已經(jīng)成為各國爭相搶奪且具有重要戰(zhàn)略意義的產(chǎn)業(yè)。傳統(tǒng)的汽車制造企業(yè)以及信息的互聯(lián)網(wǎng)企業(yè)都對車聯(lián)網(wǎng)這塊香餑餑充滿興趣,加大了對該產(chǎn)業(yè)的投入力度,促進了車輛網(wǎng)技術(shù)的發(fā)展。目前,車聯(lián)網(wǎng)主要在加強行車安全、提升駕駛?cè)藛T體驗舒適度、解決城市交通擁擠等方面得到了一定的收獲。在車聯(lián)網(wǎng)通信系統(tǒng)中,利用DSRC短距離通信協(xié)議,實現(xiàn)了車與車之間直接通信,減少了通信延遲,通信安全也得到了保證。近十幾年,人們對通信技術(shù)的研究大多集中于蜂窩移動通信系統(tǒng),但是,車輛對車輛之間的通信信道的傳播特性相比于傳統(tǒng)的蜂窩移動通信信道已經(jīng)發(fā)生了變化,因此,對車聯(lián)網(wǎng)中,車與車之間通信信道的研究顯得十分重要。本文的研究主要依托于車聯(lián)網(wǎng)平臺,對車聯(lián)網(wǎng)系統(tǒng)中車輛與車輛之間的通信信道的建模方法,信道均衡算法以及均衡器的設(shè)計展開研究,主要完成的工作內(nèi)容如下:首先,介紹了移動通信信道的數(shù)學(xué)基礎(chǔ),對車輛對車輛移動模型的數(shù)學(xué)基礎(chǔ)進行了研究。分析了車輛對車輛實際的傳播環(huán)境,并針對移動中的車輛,對現(xiàn)有算法進行改進,得到了雙移動端點包含LOS分量的信道模型,并進行仿真驗證其性能。然后,對幾種現(xiàn)有的信道均衡的算法進行了分析和研究,并在Matlab仿真軟件中對這幾種信道均衡算法仿真,獲得其性能信息與優(yōu)缺點信息。通過分析常數(shù)模算法、判決引導(dǎo)算法、修正的常數(shù)模算法等算法的優(yōu)缺點,本文提出了一種結(jié)合修正的常數(shù)模算法以及判決引導(dǎo)算法優(yōu)點的信道均衡算法,并通過仿真驗證了該算法在車輛對車輛通信環(huán)境下的實用性能。最后,本文對之前研究的信道均衡算法對應(yīng)的均衡器的硬件模塊進行了設(shè)計。對均衡器中各個子模塊的FPGA設(shè)計作了分析,并通過ModelSim SE軟件對其進行了仿真驗證。
[Abstract]:The Internet of things technology has promoted the third tide of global information industrialization. As the leader of the Internet of things industry, the Internet of vehicles has a very huge development prospect in the world. Throughout the world, car networking has become a competitive and strategic industry. The traditional automobile manufacturing enterprises and the information Internet enterprises are all full of interest in the hot spot of the car network, which has increased the investment in the industry and promoted the development of the vehicle network technology. At present, the car network mainly in strengthening the driving safety, improving the driver experience comfort, solving the urban traffic congestion and other aspects have obtained a certain harvest. In the vehicle networking communication system, the DSRC short distance communication protocol is used to realize the direct communication between vehicles, reduce the communication delay, and ensure the communication security. In the last ten years, most of the research on communication technology has been focused on cellular mobile communication systems. However, the propagation characteristics of vehicle-to-vehicle communication channels have changed compared with the traditional cellular mobile communication channels, so the propagation characteristics of vehicle-to-vehicle communication channels have been changed compared with the traditional cellular mobile communication channels. It is very important to study the communication channel between vehicles in vehicle networking. Based on the vehicle networking platform, this paper studies the modeling method of communication channel between vehicles, channel equalization algorithm and the design of equalizer in vehicle networking system. The main contents are as follows: first of all, the main contents of this paper are as follows: first of all, the main contents of this thesis are as follows: first of all, The mathematical foundation of mobile communication channel is introduced, and the mathematical foundation of vehicle movement model is studied. In this paper, the actual propagation environment of vehicle to vehicle is analyzed, and the existing algorithm is improved for the mobile vehicle, and the channel model with LOS component in dual mobile endpoint is obtained, and its performance is verified by simulation. Then, several existing channel equalization algorithms are analyzed and studied, and the performance information, advantages and disadvantages of these algorithms are simulated in Matlab simulation software. By analyzing the advantages and disadvantages of the constant module algorithm, the decision guidance algorithm and the modified constant module algorithm, a channel equalization algorithm combining the advantages of the modified constant module algorithm and the decision guidance algorithm is proposed in this paper. The practical performance of the algorithm in vehicle-to-vehicle communication environment is verified by simulation. Finally, the hardware module of the equalizer corresponding to the channel equalization algorithm is designed. The FPGA design of each sub-module in the equalizer is analyzed and verified by ModelSim SE software.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U495;TN929.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 武文科;;車聯(lián)網(wǎng)技術(shù)發(fā)展與應(yīng)用綜述[J];汽車實用技術(shù);2017年03期

2 吳騰奇;;車聯(lián)網(wǎng)發(fā)展現(xiàn)狀分析及展望[J];汽車工業(yè)研究;2016年04期

3 蘇靜;王冬;張菲菲;;車聯(lián)網(wǎng)技術(shù)應(yīng)用綜述[J];物聯(lián)網(wǎng)技術(shù);2014年06期

4 張利鋒;金蓓弘;張扶桑;;VANET中數(shù)據(jù)傳遞的關(guān)鍵技術(shù)[J];計算機科學(xué);2013年08期

5 孫小紅;;車聯(lián)網(wǎng)的關(guān)鍵技術(shù)及應(yīng)用研究[J];通信技術(shù);2013年04期

6 熊飚;張小橋;;VANET網(wǎng)絡(luò)中小尺度衰落信道仿真[J];通信技術(shù);2010年12期

7 江昊;陳立家;晏蒲柳;;VANET信道規(guī)律探討與建模[J];武漢大學(xué)學(xué)報(理學(xué)版);2008年01期

8 朱行濤;趙翔;劉郁林;;基于DD-LMS和MCMA的盲判決反饋均衡算法研究[J];微波學(xué)報;2007年02期

9 張艷萍,趙俊渭;適用于高階QAM信號的雙模式盲均衡算法及仿真[J];系統(tǒng)仿真學(xué)報;2005年01期

10 朱小剛,諸鴻文,戎蒙恬;最小均方誤差判決和自適應(yīng)判決反饋均衡器的設(shè)計實現(xiàn)[J];上海交通大學(xué)學(xué)報;2001年06期

相關(guān)會議論文 前1條

1 吳廣玉;閆波;李廣軍;;基于FPGA的基帶正交盲均衡器的設(shè)計[A];四川省通信學(xué)會2003年學(xué)術(shù)年會論文集[C];2003年

相關(guān)博士學(xué)位論文 前1條

1 賀智軼;移動到移動（M2M）衰落信道建模及統(tǒng)計特性分析研究[D];武漢理工大學(xué);2009年

相關(guān)碩士學(xué)位論文 前3條

1 夏威;Bussgang盲均衡算法研究及FPGA實現(xiàn)[D];電子科技大學(xué);2005年

2 尹曉璐;基于FPGA的信道均衡器的設(shè)計與實現(xiàn)[D];電子科技大學(xué);2005年

3 張雄;基于Bussgang技術(shù)盲均衡算法的研究[D];太原理工大學(xué);2003年

，

本文編號：2454137