發(fā)布時(shí)間：2019-07-09 18:22

【摘要】：在復(fù)雜時(shí)變水聲通信環(huán)境中非相干FH-FSK調(diào)制解調(diào)技術(shù)是一種較為穩(wěn)健、可靠的通信方式,適合于低速、高可靠的水聲設(shè)備遙控等應(yīng)用場合,如水面船遙控高速運(yùn)動的水下智能機(jī)器人(autonomous underwater vehicle,AUV)。但也面臨著以下困難:1)高速運(yùn)動帶來的多普勒會嚴(yán)重惡化通信系統(tǒng)性能;2)為節(jié)省能耗,AUV依據(jù)通信需求可對通信單元進(jìn)行經(jīng)常性的上電與斷電操作,導(dǎo)致異步單工工作模式下水面與水下通信節(jié)點(diǎn)之間很難協(xié)調(diào)工作。針對以上問題,提出了采用脈沖對技術(shù)進(jìn)行可靠多普勒估計(jì),并采用線性插值技術(shù)進(jìn)行高效多普勒補(bǔ)償;結(jié)合通信節(jié)點(diǎn)板載高精度時(shí)鐘以及設(shè)計(jì)的聲鏈路同步機(jī)制有效地解決了AUV和水面控制船之間的雙向鏈路建立與數(shù)據(jù)傳輸工作�；贠MAP-L138雙核處理器平臺設(shè)計(jì)與實(shí)現(xiàn)了FH-FSK的水聲調(diào)制解調(diào)器的樣機(jī),湖上實(shí)驗(yàn)結(jié)果表明提出的傳輸控制協(xié)議可保證通信節(jié)點(diǎn)之間的通信鏈路隨機(jī)建立和斷開,結(jié)果證明所設(shè)計(jì)的樣機(jī)穩(wěn)定、可靠。
文內(nèi)圖片：
圖片說明：AUV通信機(jī)系統(tǒng)工作示意圖
[Abstract]:Incoherent FH-FSK modulation and demodulation technology in complex time-varying underwater acoustic communication environment is a robust and reliable communication mode, which is suitable for low speed, high reliability underwater acoustic equipment remote control and other applications, such as surface ship remote control high speed underwater intelligent robot (autonomous underwater vehicle,AUV). However, it also faces the following difficulties: 1) Doppler caused by high-speed motion will seriously deteriorate the performance of the communication system; 2) in order to save energy consumption, AUV can regularly turn on and off the communication unit according to the communication requirements, which makes it difficult to coordinate between the surface and underwater communication nodes in asynchronous simplex mode. In order to solve the above problems, a reliable Doppler estimation technique based on pulse is proposed, and a linear interpolation technique is used for efficient Doppler compensation. Combined with the high precision clock on board of communication nodes and the designed acoustic link synchronization mechanism, the bidirectional link establishment and data transmission between AUV and water surface control ship are effectively solved. The prototype of FH-FSK underwater acoustic modem is designed and implemented based on OMAP-L138 dual-core processor platform. The experimental results on the lake show that the proposed transmission control protocol can ensure the random establishment and disconnection of communication links between communication nodes. The results show that the designed prototype is stable and reliable.
【作者單位】： 哈爾濱工程大學(xué)水聲工程學(xué)院;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(50909029)
【分類號】：TN929.3;TN915.05

【參考文獻(xiàn)】

相關(guān)期刊論文 前3條

1 許肖梅;;水聲通信與水聲網(wǎng)絡(luò)的發(fā)展與應(yīng)用[J];聲學(xué)技術(shù);2009年06期

2 申曉紅;王海燕;趙寶珍;張奎;;基于混沌序列的水聲跳頻通信系統(tǒng)研究[J];西北工業(yè)大學(xué)學(xué)報(bào);2006年02期

3 朱維慶;朱敏;武巖波;楊波;徐立軍;傅翔;潘鋒;;載人潛水器“蛟龍”號的水聲通信信號處理[J];聲學(xué)學(xué)報(bào);2012年06期

【共引文獻(xiàn)】

相關(guān)期刊論文 前10條

1 馬旭卓;方爾正;;單矢量差分幅度相移鍵控正交頻分復(fù)用水聲通信研究[J];兵工學(xué)報(bào);2014年04期

2 王飛;王黎明;韓焱;;水下傳感器網(wǎng)絡(luò)中的多路徑路由技術(shù)研究[J];傳感器與微系統(tǒng);2014年12期

3 胡展銘;姜文博;江偉偉;陳元;陳偉斌;;通信技術(shù)在近海環(huán)境監(jiān)測中的應(yīng)用[J];海洋環(huán)境科學(xué);2012年04期

4 涂書敏;程峻;余暉;潘銳;;水聲通信及其在潛艇通信中的應(yīng)用[J];艦船電子工程;2011年04期

5 劉友永;梁國龍;李新欣;;基于混沌序列的水聲差分跳頻G函數(shù)仿真[J];計(jì)算機(jī)仿真;2009年07期

6 林e，

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