報(bào)告題目：基于時(shí)間反轉(zhuǎn)的單載波頻域均衡水下傳輸技術(shù)。
（Time reversal based frequency-domain equalization for underwater acoustic single-carrier transmissions.）
報(bào)告時(shí)間：2018年5月16日上午9:30
報(bào)告地點(diǎn)：航海主樓201
聯(lián)系人：何成兵
報(bào)告人簡(jiǎn)介：Aijun Song教授任教于美國(guó)阿拉巴馬大學(xué)電子與計(jì)算機(jī)工程學(xué)院，研究涉及廣泛，包括：裝設(shè)儀器，實(shí)驗(yàn)測(cè)試，現(xiàn)場(chǎng)實(shí)驗(yàn)，理論探索，算法設(shè)計(jì)，模型開(kāi)發(fā)，硬件成型。主要研究現(xiàn)代數(shù)字通信，傳感和信號(hào)處理技術(shù)，并研究其在極端環(huán)境下的應(yīng)用。Aijun Song教授擁有豐富的快速時(shí)變無(wú)線(xiàn)信道的數(shù)字通信和水聲通信的科研經(jīng)歷，并且在水聲無(wú)線(xiàn)通信領(lǐng)域做出了重要貢獻(xiàn)。
報(bào)告內(nèi)容簡(jiǎn)介：Prefixes, in forms of cyclic-prefixes or zero-padding, have often been viewed as indispensable in underwater acoustic single-carrier transmissions to avoid inter-block interference (IBI) and to formulate circular convolution. However, the prefix introduces overhead and reduces spectral efficiency. This is especially true in fast time-varying channel conditions. Here we propose a prefix-free scheme to facilitate frequency domain equalization (FDE) in an underwater acoustic communication system, based on the time reversal processing.
