本文關(guān)鍵詞：淺海水聲信道MIMO通信（英文）

  更多相關(guān)文章： underwater acoustic underwater acoustic communication multiple-input multiple-output(MIMO) decision feedback equalizer(DFE) very shallow water multi-channel time reversal

【摘要】：Underwater acoustic channels pose a great difficulty for the development of high speed communication due to highly limited band-width as well as hostile multipath interference. Enlightened by rapid progress of multiple-input multiple-output(MIMO) technologies in wireless communication scenarios, MIMO systems offer a potential solution by enabling multiple spatially parallel communication channels to improve communication performance as well as capacity. For MIMO acoustic communications, deep sea channels offer substantial spatial diversity among multiple channels that can be exploited to address simultaneous multipath and co-channel interference. At the same time, there are increasing requirements for high speed underwater communication in very shallow water area(for example, a depth less than 10 m). In this paper, a space-time multichannel adaptive receiver consisting of multiple decision feedback equalizers(DFE) is adopted as the receiver for a very shallow water MIMO acoustic communication system. The performance of multichannel DFE receivers with relatively small number of receiving elements are analyzed and compared with that of the multichannel time reversal receiver to evaluate the impact of limited spatial diversity on multi-channel equalization and time reversal processing. The results of sea trials in a very shallow water channel are presented to demonstrate the feasibility of very shallow water MIMO acoustic communication.
【作者單位】： Key
【關(guān)鍵詞】： underwater acoustic underwater acoustic communication multiple-input multiple-output(MIMO) decision feedback equalizer(DFE) very shallow water multi-channel time reversal
【基金】：Supported by the National Natural Science Foundation of China(Nos.11274259,11574258) the Open Project Program of the Key Laboratory of Underwater Acoustic Signal Processing,the Minister of Education(Southeast University)(No.UASP1305)
【分類號】：TN929.3
【正文快照】： 1 Introduction1There is rapidly increasing RD interest in high data rateunderwater acoustic communication systems in the fields ofoceanic exploitation,underwater construction,oceanography research,and national defense(Chitre et al.,2008).Features of und

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