【摘要】：隨著無線通信技術(shù)的高速發(fā)展,無線電波傳播特性已成為一個(gè)熱點(diǎn)研究課題,它關(guān)系到移動(dòng)通信系統(tǒng)的容量確定、天線的型號(hào)選擇、基站天線架設(shè)、小區(qū)蜂窩的劃分等一系列技術(shù)問題。由于各種新業(yè)務(wù)的不斷應(yīng)用,用戶數(shù)量的不斷增加。為了有限頻譜資源的條件下滿足用戶更多的通信需求,小區(qū)蜂窩的劃分越來越細(xì),頻率復(fù)用率越來越高;另外信號(hào)的傳播具有很強(qiáng)的隨機(jī)性,信號(hào)能量波動(dòng)大,同周圍的物理環(huán)境有很大的關(guān)系,必然導(dǎo)致區(qū)域內(nèi)的信號(hào)源相互之間的干擾趨于嚴(yán)重。為了達(dá)到最佳的通信質(zhì)量,在移動(dòng)通信的基站和系統(tǒng)的設(shè)計(jì)規(guī)劃過程中越來越需要運(yùn)用各種軟件、模型進(jìn)行預(yù)測(cè)仿真和分析。本文通過對(duì)典型地貌的特征及信號(hào)在該環(huán)境下傳播特性的分析,建立了若干具體環(huán)境下電波傳播和干擾預(yù)測(cè)模型,進(jìn)行了大量的預(yù)測(cè)仿真對(duì)比,驗(yàn)證了預(yù)測(cè)模型的正確性;并用Delphi語言開發(fā)了用于移動(dòng)通信系統(tǒng)規(guī)劃設(shè)計(jì)的電波傳播與干擾預(yù)測(cè)軟件。軟件的主要功能是預(yù)測(cè)基站發(fā)射的信號(hào)在用戶接收點(diǎn)的衰減情況和移動(dòng)通信基站發(fā)射的信號(hào)與其它無線電系統(tǒng)的干擾情況。該軟件對(duì)移動(dòng)通信基站的規(guī)劃設(shè)計(jì)具有一定的指導(dǎo)作用。
[Abstract]:With the rapid development of wireless communication technology, radio wave propagation characteristics have become a hot research topic, which is related to the capacity determination of mobile communication system, the choice of antenna type, the installation of base station antenna, and so on. A series of technical problems such as cell division. As a result of the constant application of various new services, the number of users continues to increase. In order to meet more communication needs of users under the condition of limited spectrum resources, the division of cell cells becomes more and more fine, and the frequency reuse rate becomes higher and higher. In addition, the signal propagation has a strong randomness, the signal energy fluctuates greatly, and has a great relationship with the surrounding physical environment, which will inevitably lead to the interference between the signal sources in the region tends to be serious. In order to achieve the best communication quality, it is more and more necessary to use various software and models to predict and analyze the design and planning of mobile communication base stations and systems. Based on the analysis of the characteristics of typical landforms and the propagation characteristics of signals in this environment, several prediction models of radio wave propagation and interference are established in this paper, and a large number of prediction simulations are carried out to verify the correctness of the prediction model. The software of radio wave propagation and interference prediction for mobile communication system planning and design is developed with Delphi language. The main function of the software is to predict the attenuation of the signals transmitted by the base station at the user receiving point and the interference between the signals transmitted by the mobile communication base stations and other radio systems. The software can guide the planning and design of mobile communication base station.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN929.5;TN011

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 劉強(qiáng);江暉;;基于射線跟蹤的B3G室內(nèi)容量預(yù)測(cè)[J];科協(xié)論壇(下半月);2010年01期

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本文編號(hào)：2434389