本文選題：可見光通信　切入點(diǎn)：室內(nèi)定位　出處：《解放軍信息工程大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：可見光通信是利用白光LED(Lighting Emitting Diode)固態(tài)光源在照明同時(shí)實(shí)現(xiàn)通信的新型綠色通信技術(shù),具有泛在覆蓋、節(jié)能降耗、健康安全、定向輻射、布設(shè)簡(jiǎn)單、成本低廉、電磁兼容性良好等突出優(yōu)點(diǎn)。基于可見光通信的新型室內(nèi)定位方法具有室內(nèi)傳統(tǒng)無線定位方法難以替代的優(yōu)勢(shì),因此在室內(nèi)無線定位領(lǐng)域具有良好的應(yīng)用前景,成為近年來該領(lǐng)域的研究熱點(diǎn)。本文基于典型可見光通信室內(nèi)無線定位模型,深入研究可見光定位技術(shù)中光源陣列布局優(yōu)化問題,主要研究?jī)?nèi)容與創(chuàng)新點(diǎn)如下:1.針對(duì)典型可見光通信室內(nèi)定位模擬環(huán)境,推導(dǎo)了室內(nèi)待測(cè)平面定位誤差分布性能限(克拉美羅界)和定位性能最佳的光源布局。在滿足室內(nèi)光照條件要求的前提下,通過推導(dǎo)不同光源布局下的待測(cè)點(diǎn)克拉美羅界,從理論上給出了最佳的光源布局。在此基礎(chǔ)上,使用高斯-牛頓迭代算法進(jìn)行了仿真分析,對(duì)推導(dǎo)出的克拉美羅界進(jìn)行了正確性驗(yàn)證,仿真結(jié)果表明根據(jù)推導(dǎo)克拉美羅界設(shè)計(jì)的可見光源陣列布局較其它布局可以得到更好的定位性能。2.分析了一次反射對(duì)于定位性能的影響。針對(duì)存在一次反射的情況,分析了簡(jiǎn)化條件和復(fù)雜條件兩種情況下反射信道的特點(diǎn)。在簡(jiǎn)化條件的基礎(chǔ)上,研究了待測(cè)平面上的光照度分布和待測(cè)點(diǎn)定位誤差的克拉美羅界分布,分析了一次反射對(duì)定位系統(tǒng)性能的影響,為存在一次反射的可見光源陣列布局方法提供了指導(dǎo)依據(jù)。3.針對(duì)照明與定位不同需求,對(duì)光源陣列布局進(jìn)行了聯(lián)合優(yōu)化。針對(duì)不同應(yīng)用環(huán)境中的多個(gè)應(yīng)用需求目標(biāo),采用四種多目標(biāo)優(yōu)化方法進(jìn)行求解,對(duì)各個(gè)目標(biāo)性能指標(biāo)進(jìn)行了對(duì)比分析,以達(dá)到照明和定位綜合性能最符合應(yīng)用環(huán)境的要求,并通過仿真對(duì)各種方法進(jìn)行了效能分析。4.針對(duì)礦下平臺(tái),結(jié)合項(xiàng)目組實(shí)際研究情況,提出了一種適用于煤礦、地鐵、公路隧道、大型建筑物的走廊等空間狹長(zhǎng)區(qū)域內(nèi)的定位方法。介紹了文中光源布局及定位算法在煤礦井下綜合信息系統(tǒng)中的實(shí)際應(yīng)用。
[Abstract]:Visible-light communication is a new kind of green communication technology, which uses white LED(Lighting Emitting Diode-based solid-state light source to realize communication while lighting. It has universal coverage, energy saving and consumption reduction, health and safety, directional radiation, simple layout and low cost. The new indoor positioning method based on visible light communication has the advantage that the traditional indoor wireless location method is difficult to replace, so it has a good application prospect in the field of indoor wireless location. Based on the typical indoor wireless location model of visible light communication, the optimization of light source array layout in visible light location technology is deeply studied in this paper. The main research contents and innovations are as follows: 1. Aiming at typical indoor location simulation environment of visible light communication, In this paper, the error distribution performance limit (Clemero boundary) and the optimal light source layout are derived. On the premise of satisfying the indoor illumination requirements, the Clamello boundary of the measuring point is deduced under different light source configurations. The optimal light source layout is given theoretically. On this basis, the simulation analysis is carried out by using Gao Si Newton iterative algorithm, and the correctness of the derived Clamero boundary is verified. The simulation results show that the location performance of the visible light source array designed by the derivation of Clemero boundary is better than that of other layouts. 2. The effect of primary reflection on location performance is analyzed. In this paper, the characteristics of reflection channel under both simplified and complex conditions are analyzed. On the basis of the simplified condition, the distribution of illumination on the plane to be measured and the distribution of the Crameiro boundary of the location error of the point to be measured are studied. This paper analyzes the effect of primary reflection on the performance of positioning system, and provides the guidance basis for the layout method of visible light source array with primary reflection. 3. According to the different requirements of illumination and location, The array layout of light source is optimized jointly. Four kinds of multi-objective optimization methods are used to solve the problem, and the performance of each target is compared and analyzed. In order to achieve the comprehensive performance of lighting and positioning most in line with the requirements of the application environment, and through the simulation of various methods of effectiveness analysis .4. in view of the platform under the mine, combined with the actual research situation of the project team, a kind of suitable for coal mine, subway, The location method in long and narrow area of highway tunnel and corridor of large building is introduced. The practical application of the light source layout and location algorithm in the comprehensive information system of underground coal mine is introduced in this paper.
【學(xué)位授予單位】：解放軍信息工程大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN929.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 婁鵬華;張洪明;郎凱;姚敏玉;徐正元;;基于室內(nèi)可見光照明的位置服務(wù)系統(tǒng)[J];光電子.激光;2012年12期

2 楊森;于慶龍;;可見光通信中白光LED陣列光源的光功率分布研究[J];科技促進(jìn)發(fā)展;2012年09期

3 湯嬋娟;邵宇豐;遲楠;方武良;李欣穎;;多維多階調(diào)制格式產(chǎn)生方案的比較研究[J];光通信研究;2011年06期

4 許英朝;林洪沂;朱文章;;魚眼鏡頭的光學(xué)系統(tǒng)設(shè)計(jì)[J];廈門理工學(xué)院學(xué)報(bào);2011年03期

5 鄒書敏;邵宇豐;鄭曦;方武良;李欣穎;遲楠;;基于多邊帶調(diào)制產(chǎn)生全光正交頻分復(fù)用信號(hào)的研究[J];光學(xué)學(xué)報(bào);2011年07期

6 丁德強(qiáng);柯熙政;李建勛;;室內(nèi)可見光通信多陣元發(fā)射天線優(yōu)化設(shè)計(jì)[J];應(yīng)用科學(xué)學(xué)報(bào);2011年03期

7 肖衛(wèi)初;陳偉宏;龔倫峰;;一種新的幾何無線定位方法[J];科學(xué)技術(shù)與工程;2011年13期

8 張建昆;楊宇;陳弘達(dá);;室內(nèi)可見光通信調(diào)制方法分析[J];中國(guó)激光;2011年04期

9 張自然;黃博;張俊文;朱江波;邵宇豐;黃德修;遲楠;;相位噪聲補(bǔ)償新技術(shù)[J];光通信研究;2011年01期

10 毛永毅;李明遠(yuǎn);張保軍;;基于BP神經(jīng)網(wǎng)絡(luò)的蜂窩無線定位算法[J];計(jì)算機(jī)工程與應(yīng)用;2008年03期

，

本文編號(hào)：1645363