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摘要


近年來,非線性系統理論被廣泛之討論研究,其中,尤以混沌理論最被注意, 對於其複雜且有趣的現象,令人印象深刻。國內外學者及期刊中多有研究及文獻 發表;目前,大家的眼光集中在其應用之領域。本文即是將混沌信號應用於展頻 通訊上。一般混沌信號具有幾項優點:(1)信號具展頻特性(2)具有良好的自相關 及互相關特性(3)產生混沌信號源簡單。以上的特性,很適合於特定之通訊應用, 可做為有別於傳統通訊系統之選擇參考。本文是研究CDMA 展頻通訊系統中,PN 碼 由混沌信號來產生,並討論此PN 碼之特性。最後,將以計算機模擬來驗證混沌信 號可應用於展頻通訊系統中。

關鍵字

混沌信號 展頻通訊 PN 碼

並列摘要


In the last few years there has been much interest in the studies of chaoticandcomplicated phenomena in systems. Numerous journals have been devoted to theanalysis of such phenomena in systems. This paper focuses on applications of the theoryof chaotic circuit to communication systems. There are some advantages found inchaotic communication systems: (a)transmitted signals have spread spectrum (b)goodauto-correlation and cross-correlation properties (c)generation of chaotic signal issimple. The major aim of this project is to investigate applications of chaotic signals togenerate a PN sequence of spread-spectrum communication system. Finally, computersimulations will be provided to illustrate our analysis.

延伸閱讀


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