基于同態(tài)濾波的水聲時延估計算法研究
發(fā)布時間:2018-09-08 16:04
【摘要】:針對水聲信道的多徑擴展特性和稀疏性,和海洋介質(zhì)的多重散射和不均勻性,同態(tài)濾波技術(shù)可以在變換域?qū)⒕矸e轉(zhuǎn)化為加法的操作進行處理,非常適合水聲信道.主要對水聲信號在倒譜域進行處理,通過信道沖激響應作為衡量的標準,給出了有益的結(jié)論,為更進一步的研究奠定了基礎.
[Abstract]:Aiming at the multipath spread and sparsity of underwater acoustic channels and the multi-scattering and inhomogeneity of marine media, homomorphic filtering can transform convolution into addition in transform domain, which is very suitable for underwater acoustic channels. The underwater acoustic signal is processed in the cepstrum domain, and the channel impulse response is used as the standard of measurement, and some useful conclusions are given, which lays a foundation for further research.
【作者單位】: 許昌學院交通運輸學院;哈爾濱工程大學水聲技術(shù)重點實驗室;
【基金】:國家青年自然科學基金(61501134);國家青年自然科學基金(11304056)
【分類號】:TB56
,
本文編號:2231010
[Abstract]:Aiming at the multipath spread and sparsity of underwater acoustic channels and the multi-scattering and inhomogeneity of marine media, homomorphic filtering can transform convolution into addition in transform domain, which is very suitable for underwater acoustic channels. The underwater acoustic signal is processed in the cepstrum domain, and the channel impulse response is used as the standard of measurement, and some useful conclusions are given, which lays a foundation for further research.
【作者單位】: 許昌學院交通運輸學院;哈爾濱工程大學水聲技術(shù)重點實驗室;
【基金】:國家青年自然科學基金(61501134);國家青年自然科學基金(11304056)
【分類號】:TB56
,
本文編號:2231010
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