Underwater acoustic OFDM channel equalization based on virtual time reversal mirror
To solve the problem of the severe inter-symbol interference of orthogonal frequency division multiplexing (OFDM) communication caused by underwater acoustic multipath channel,a virtual time reversal channel equalization scheme was proposed.VTRM was able to shorten the channel impulse response and a...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2015-01-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015011/ |
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| _version_ | 1841539698871238656 |
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| author | Yan-ling YIN Gang QIAO Song-zuo LIU |
| author_facet | Yan-ling YIN Gang QIAO Song-zuo LIU |
| author_sort | Yan-ling YIN |
| collection | DOAJ |
| description | To solve the problem of the severe inter-symbol interference of orthogonal frequency division multiplexing (OFDM) communication caused by underwater acoustic multipath channel,a virtual time reversal channel equalization scheme was proposed.VTRM was able to shorten the channel impulse response and alleviate the phase distortion caused by the acoustic channel for its characteristic of the temporal compression and phase conjugation in frequency domain.The matching pursuit (MP) algorithm was applied to estimate the channel impulse response which could estimate the channel amplitude,time delay and phase accurately.It provided the channel information for the VTRM channel equalization.It also improved a lot compared to the traditional matching correlation channel estimation method which couldn't estimate the channel phase and the estimation precision was low.The simulation,pool trail and Songhua lake experiment show that the performance of VTRM channel equalization is better than that of the PTRM and LS channel equalization in the OFDM underwater acoustic communication. |
| format | Article |
| id | doaj-art-f28201971b0840958bc192e776961f81 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2015-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-f28201971b0840958bc192e776961f812025-01-14T06:45:27ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2015-01-0136909959690013Underwater acoustic OFDM channel equalization based on virtual time reversal mirrorYan-ling YINGang QIAOSong-zuo LIUTo solve the problem of the severe inter-symbol interference of orthogonal frequency division multiplexing (OFDM) communication caused by underwater acoustic multipath channel,a virtual time reversal channel equalization scheme was proposed.VTRM was able to shorten the channel impulse response and alleviate the phase distortion caused by the acoustic channel for its characteristic of the temporal compression and phase conjugation in frequency domain.The matching pursuit (MP) algorithm was applied to estimate the channel impulse response which could estimate the channel amplitude,time delay and phase accurately.It provided the channel information for the VTRM channel equalization.It also improved a lot compared to the traditional matching correlation channel estimation method which couldn't estimate the channel phase and the estimation precision was low.The simulation,pool trail and Songhua lake experiment show that the performance of VTRM channel equalization is better than that of the PTRM and LS channel equalization in the OFDM underwater acoustic communication.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015011/virtual time reversal mirrorchannel equalizationmatching pursuitorthogonal frequency division multi-plexing |
| spellingShingle | Yan-ling YIN Gang QIAO Song-zuo LIU Underwater acoustic OFDM channel equalization based on virtual time reversal mirror Tongxin xuebao virtual time reversal mirror channel equalization matching pursuit orthogonal frequency division multi-plexing |
| title | Underwater acoustic OFDM channel equalization based on virtual time reversal mirror |
| title_full | Underwater acoustic OFDM channel equalization based on virtual time reversal mirror |
| title_fullStr | Underwater acoustic OFDM channel equalization based on virtual time reversal mirror |
| title_full_unstemmed | Underwater acoustic OFDM channel equalization based on virtual time reversal mirror |
| title_short | Underwater acoustic OFDM channel equalization based on virtual time reversal mirror |
| title_sort | underwater acoustic ofdm channel equalization based on virtual time reversal mirror |
| topic | virtual time reversal mirror channel equalization matching pursuit orthogonal frequency division multi-plexing |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015011/ |
| work_keys_str_mv | AT yanlingyin underwateracousticofdmchannelequalizationbasedonvirtualtimereversalmirror AT gangqiao underwateracousticofdmchannelequalizationbasedonvirtualtimereversalmirror AT songzuoliu underwateracousticofdmchannelequalizationbasedonvirtualtimereversalmirror |