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    請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/9072


    題名: 以地理資訊系統為架構的無線電波傳播損耗預測和干擾分析系統;A Geographic Information Systems (GIS) Based System for Radio Wave Propagation Loss Prediction and Interference Analysis
    作者: 李志仁;Zhe-Len Lee
    貢獻者: 電機工程研究所
    關鍵詞: 地理資訊系統;傳播損耗;干擾;數值地形;GIS;Propagation Loss;Interference;Digital Terrain;ArcView
    日期: 2000-06-23
    上傳時間: 2009-09-22 11:40:34 (UTC+8)
    出版者: 國立中央大學圖書館
    摘要: 三年前政府開放了無線電叫人業務和行動通訊業務的自由化經營,無線電通訊的產業更是蓬勃的發展起來。數千個無線電的發射站台如雨後春筍般的出現,遍及了全台灣各地。因此,如何有效的規劃與管理便成為了一個很重要的問題。 在本篇論文中,我們希望能對下列兩個重要的問題提出貢獻。 第一、對於一個新建的發射站台而言,我們希望能確保在預定的服務範圍內都能保持良好的通訊品質,因此預測傳播損耗成為一件非常重要的事情。第二、當加入了一個新建的發射站台後,評估其與周遭的發射站台間彼此的干擾現象,也是一個重要的問題。 近年來由於地理資訊系統的快速發展,各種有關地理資訊系統的應用程式和管理方法不斷的推陳出新,再加上運算用的硬軟平台有著長足的進步,所以本論文嘗試著利用地理資訊系統來建立無線電電波傳播損耗預測和干擾分析系統。 Three years ago, our government opened the management licenses of the businesses of calling services and land mobile wireless communication services in Taiwan, so the development of the radio industry became more and more fast and immense. These companies built thousands of transmitting stations to provide the excellent quality of services, and there will be more transmitting stations established in the future. Therefore, how to manage the transmitting stations effectively has become a more important and complex problem. In this thesis, we hope to do some contributions about the following two themes. First, to establish a new transmitting station, the foremost consideration is to provide an excellent quality of communication services in coverage. Hence, we build a propagation loss prediction system to predict the propagation loss with different conditions. Second, after adding a new transmitting station in a region, the most significant problem is the interference between the already existed transmitting stations and the new transmitting station in the region. In the decade, GIS have developed to be a powerful tool in the many geographic applications and computers also have developed to be a fast and powerful implement in many engineering applications. Therefore, we build a Geographic Information Systems based system for radio wave propagation loss prediction and interference analysis.
    顯示於類別:[電機工程研究所] 博碩士論文

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