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DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 曹建和 | |
dc.contributor.author | Wei-Shuen Huang | en |
dc.contributor.author | 黃煒順 | zh_TW |
dc.date.accessioned | 2021-06-15T01:36:46Z | - |
dc.date.available | 2011-08-19 | |
dc.date.copyright | 2011-08-19 | |
dc.date.issued | 2011 | |
dc.date.submitted | 2011-08-15 | |
dc.identifier.citation | [1] James Preisig , ”Acoustic Propagation Considerations for Underwater Acoustic Communications Network Development ”,Department of Applied Ocean Physics and Eng. WHOI Woods Hole, MA, USA.
[2] G.M. Wenz, ”Review of Underwater Acoustic Research : Noise ”,J. Acoust. Soc. Am., 51(3), 1010-1020, 1972. [3] R.J. Urick, Principles of underwater sound, McGraw-Hill, 1993. [4] V.O. Knudsen, R.S. Alford and,J.W. Emling ”Underwater Ambient Noise”,1948 [5] Steven R. Ramp, Tswun Yung Tang, Timothy F. Duda, James F. Lynch, Senior Member, IEEE, Antony K Liu, Ching-Sang Chin, Frederick L. Bahr, Hyoung-Rok Kim, and Ying-Jing Yang, ”Internal Solitons in the Northeastern South China Sea Part I: Source and Deep Water Propagation ”,IEEE J. Oceanic Eng, vol. 29, no.4, October 2004. [6] D. R. Dowling, “Acoustic pulse compression using passive phase conjugate processing,” J. Acoust. Soc. Amer., vol. 95, no. 3, pp. 1450-1458, 1994. [7] A. Zielinski, Y. Yoon, and L. Wu, “Performance analysis of digital acoustic communication in a shallow water channel,” IEEE J. Oceanic Eng., vol. 20, pp. 293–299, Oct. 1995. [8] F. Dyson, W. Munk, and B Zetler, ”Interpretation of multipath scintillations Eleuthera to Bermuda in terms of internal waves and tides,” J. Acoust. Soc Amer., vol. 59, no.5, pp.1121-1133, 1976. [9] T.C. Yang, “Measurement of temporal coherence of sound transmissions through shallow water” Naval Research Laboratory, Washington, DC 20375. [10] S.Flatte, R. Dashen, W. Munk, L. Watson, and F. Zachariasen, “Sound Transmission Through a Fluctuating Ocean” Cambridge: Cambridge Univ. Press, 1979. [11] A. M. Yaglom, “An Introduction to the Theory of Stationary Random Functions,” NJ: Press, 1979. [12] Kwang B. Yoo, ”Shallow Water Temporal Coherence of Broadband Acoustic Signals in the Presence of Internal Waves,” IEEE J. Oceanic Eng. vol. 30, no. 2, April 2005 [13] Yung-Sheng Chiu, Yuan-Ying Chang, Li-Wen Hsieh, Mei-Chun Yuan, and Chi-Fang Chen , “Three-dimensional acoustics effects in the ASIAEX SCS experiment,” J. Comp.Acoust., Vol. 17, No. 1, pp.11-27, March 2009. [14] Chi-Fang Chen, Tswen-Yung Tang, Ruey-Chang Wei, Gee-Pinn Too, and Ying-Jang Yang, et al, “The Asian Seas International Acoustics Experiment (ASIAEX) Analysis Workshop,” Proceedings of the ASIAEX Analysis Workshop, UAL-NTU TR 0303, Taipei, Taiwan, 2003(UAL-NTU TR 0303) [15] 陳琪芳,「亞洲海域國際聲學實驗整合計畫」,第八屆三軍官校基礎學術研討會暨第三屆海軍與海洋學術研討會,中華民國90年9月。 [16] 陳琪芳,「亞洲海域國際聲學實驗-總計畫」,國科會專題計畫成果報告,民國91年(NTU-UAL PTR 2002-03)。 [17] Y.S. Linus Chiu, Chi-Fang Chen, “Time reversal processing effect on foci structure in a dynamic ocean waveguide,” Journal of Mechanics, Vol. 23, No. 3, pp.221-233, September 2007. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43097 | - |
dc.description.abstract | 近年來水下通訊的研究,從深層海域轉移到了淺層海域,由於陸地資源如石油等即將耗盡,對於水下通信技術的提升也越來越迫切。水下通信比起陸地通訊而言,遇到最大困難是每個不同的海域的通道特性皆不相同,即使是相同海域,在不同的時間點,通道特性也不一樣,即海洋的通道為一時變系統。為了瞭解淺層海洋的通道特性,本篇論文利用從南海以及碧潭所得到的實驗數據,來分析其通道的特性,包含了通道的脈衝響應、訊號與雜訊比、信號與多重路徑比,其中最重要的是討論同調時間以及相位率的相關性,同調通訊提供了較高的資料量在頻寬受限制的水下的通道中,本論文中驗證在淺水中相位率以及同調時間有直接的關聯性。 | zh_TW |
dc.description.abstract | In the past decade, the research of underwater acoustic communication is focus on shallow water. Due to the land resources like petroleum are going to exhaust, improves the techniques of underwater acoustic communication are in an urgent need. For underwater communication, the most important problem is that the ocean environment is a time-varing system. That means the underwater channel changing by different time. In this paper, we use some channel analysis to understand the characteristics of shallow water channel, the most important thing is discussing the relationship between coherent time and phase rate. Phase coherent communications provide a high data rate transmission in a band-limited underwater acoustic channel. Therefore, it is important to know about the coherent time and phase rate. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T01:36:46Z (GMT). No. of bitstreams: 1 ntu-100-R98942128-1.pdf: 3542224 bytes, checksum: ee625a6ad2acab730b74e98c71b193e2 (MD5) Previous issue date: 2011 | en |
dc.description.tableofcontents | 致謝…………………………………………………i
中文摘要……………………………………………ii 英文摘要……………………………………………iii Chapter1 緒論……………………………………1 1.1 水下通信基本背景介紹…………………1 1.2 水下環境……..…………………………2 1.2.1 水下聲音傳播特性………………………2 1.2.2 波導、多重路徑…………………………3 1.3 環境噪音…………………………………3 1.4 內波………………………………………4 1.5 研究動機…………………………………5 Chapter2實驗架構…………………………………6 2.1 實驗地點與時間………………………………6 2.1.1南海實驗(ASIAEX) ……………6 2.1.2碧潭實驗………………………………7 2.2 碧潭實驗介紹…………………………………9 2.3 氣象……………………………………………11 Chapter3相關理論…………………………………12 3.1 序列M……………………………………12 3.2 脈波壓縮…………………………………13 3.3 通道脈衝響應……………………………13 3.4 信號與多重路徑比………………………14 3.5 DMZ’s 相關模型………………………15 3.6 同調時間…………………………………17 Chapter4實驗結果…………………………………19 4.1南海實驗分析……………………………19 4.1.1通道脈衝響應……………………19 4.1.2信號與多重路徑比………………23 4.1.3相位變化速率與相關函數………26 4.1.4同調時間…………………………32 4.2碧潭實驗分析……………………………32 4.2.1通道脈衝響應……………………33 4.2.2信號與多重路徑比………………35 4.2.3相位變化速率與相關函數………36 4.2.4同調時間…………………………38 Chapter5結論………………………………………39 參考文獻……………………………………………40 | |
dc.language.iso | zh-TW | |
dc.title | 淺海水下通道之時間相關性與相位速率特性分析 | zh_TW |
dc.title | UWA Channel Temporal Coherence and Phase Rate Characteristic
Analysis in Shallow Water | en |
dc.type | Thesis | |
dc.date.schoolyear | 99-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 陳琪芳,邱永盛 | |
dc.subject.keyword | 通道估測,淺海通道,同調時間, | zh_TW |
dc.subject.keyword | channel estimation,shallow water,coherent time, | en |
dc.relation.page | 41 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2011-08-16 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電機工程學研究所 | zh_TW |
顯示於系所單位: | 電機工程學系 |
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