Doppler Compensation Techniques for M-Ary Sequence Spread Spectrum Signals Based on Correlation Cost Factors in Mobile Underwater Acoustic Communication
Unlike terrestrial radio, the speed of sound in the ocean is relatively slow, which results in mobile underwater M-ary spread spectrum communication typically exhibiting significant and variable multipath effects along with strong Doppler effects, leading to rapid carrier phase shifts in the receive...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
|
| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/12/12/2151 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850037350583762944 |
|---|---|
| author | Yubo Han Shuping Han Heng Zhao Yaohui Hu Jingfeng Xu Gang Yang |
| author_facet | Yubo Han Shuping Han Heng Zhao Yaohui Hu Jingfeng Xu Gang Yang |
| author_sort | Yubo Han |
| collection | DOAJ |
| description | Unlike terrestrial radio, the speed of sound in the ocean is relatively slow, which results in mobile underwater M-ary spread spectrum communication typically exhibiting significant and variable multipath effects along with strong Doppler effects, leading to rapid carrier phase shifts in the received signal that severely impact decoding accuracy. This study aims to address the issue of rapid carrier phase shifts caused by significant time-varying Doppler shifts during mobile underwater M-SS communication. This paper innovatively proposes a method for updating matched filters based on correlation cost factors. By calculating the correlation cost factors for each received symbol, the method guides the direction of Doppler estimation and updates the matched filters. After identifying the optimal match, the received symbols are shifted, correlated, and decoded. Simulation and sea trial results indicate that this method demonstrates higher computational efficiency and improved decoding accuracy compared to traditional Doppler estimation matched filters under low signal-to-noise ratio conditions, and exhibits greater robustness under complex motion conditions. |
| format | Article |
| id | doaj-art-a2c7125d166c4e28aeea16368ae25cf4 |
| institution | DOAJ |
| issn | 2077-1312 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-a2c7125d166c4e28aeea16368ae25cf42025-08-20T02:56:52ZengMDPI AGJournal of Marine Science and Engineering2077-13122024-11-011212215110.3390/jmse12122151Doppler Compensation Techniques for M-Ary Sequence Spread Spectrum Signals Based on Correlation Cost Factors in Mobile Underwater Acoustic CommunicationYubo Han0Shuping Han1Heng Zhao2Yaohui Hu3Jingfeng Xu4Gang Yang5Navy Submarine Academy, Qingdao 266000, ChinaNavy Submarine Academy, Qingdao 266000, ChinaNavy Submarine Academy, Qingdao 266000, ChinaNavy Submarine Academy, Qingdao 266000, ChinaNavy Submarine Academy, Qingdao 266000, ChinaNavy Submarine Academy, Qingdao 266000, ChinaUnlike terrestrial radio, the speed of sound in the ocean is relatively slow, which results in mobile underwater M-ary spread spectrum communication typically exhibiting significant and variable multipath effects along with strong Doppler effects, leading to rapid carrier phase shifts in the received signal that severely impact decoding accuracy. This study aims to address the issue of rapid carrier phase shifts caused by significant time-varying Doppler shifts during mobile underwater M-SS communication. This paper innovatively proposes a method for updating matched filters based on correlation cost factors. By calculating the correlation cost factors for each received symbol, the method guides the direction of Doppler estimation and updates the matched filters. After identifying the optimal match, the received symbols are shifted, correlated, and decoded. Simulation and sea trial results indicate that this method demonstrates higher computational efficiency and improved decoding accuracy compared to traditional Doppler estimation matched filters under low signal-to-noise ratio conditions, and exhibits greater robustness under complex motion conditions.https://www.mdpi.com/2077-1312/12/12/2151Doppler effectunderwater acoustic communicationM-ary spread spectrum system (M-SS)carrier phase shiftcorrelation cost factor (CCF) |
| spellingShingle | Yubo Han Shuping Han Heng Zhao Yaohui Hu Jingfeng Xu Gang Yang Doppler Compensation Techniques for M-Ary Sequence Spread Spectrum Signals Based on Correlation Cost Factors in Mobile Underwater Acoustic Communication Journal of Marine Science and Engineering Doppler effect underwater acoustic communication M-ary spread spectrum system (M-SS) carrier phase shift correlation cost factor (CCF) |
| title | Doppler Compensation Techniques for M-Ary Sequence Spread Spectrum Signals Based on Correlation Cost Factors in Mobile Underwater Acoustic Communication |
| title_full | Doppler Compensation Techniques for M-Ary Sequence Spread Spectrum Signals Based on Correlation Cost Factors in Mobile Underwater Acoustic Communication |
| title_fullStr | Doppler Compensation Techniques for M-Ary Sequence Spread Spectrum Signals Based on Correlation Cost Factors in Mobile Underwater Acoustic Communication |
| title_full_unstemmed | Doppler Compensation Techniques for M-Ary Sequence Spread Spectrum Signals Based on Correlation Cost Factors in Mobile Underwater Acoustic Communication |
| title_short | Doppler Compensation Techniques for M-Ary Sequence Spread Spectrum Signals Based on Correlation Cost Factors in Mobile Underwater Acoustic Communication |
| title_sort | doppler compensation techniques for m ary sequence spread spectrum signals based on correlation cost factors in mobile underwater acoustic communication |
| topic | Doppler effect underwater acoustic communication M-ary spread spectrum system (M-SS) carrier phase shift correlation cost factor (CCF) |
| url | https://www.mdpi.com/2077-1312/12/12/2151 |
| work_keys_str_mv | AT yubohan dopplercompensationtechniquesformarysequencespreadspectrumsignalsbasedoncorrelationcostfactorsinmobileunderwateracousticcommunication AT shupinghan dopplercompensationtechniquesformarysequencespreadspectrumsignalsbasedoncorrelationcostfactorsinmobileunderwateracousticcommunication AT hengzhao dopplercompensationtechniquesformarysequencespreadspectrumsignalsbasedoncorrelationcostfactorsinmobileunderwateracousticcommunication AT yaohuihu dopplercompensationtechniquesformarysequencespreadspectrumsignalsbasedoncorrelationcostfactorsinmobileunderwateracousticcommunication AT jingfengxu dopplercompensationtechniquesformarysequencespreadspectrumsignalsbasedoncorrelationcostfactorsinmobileunderwateracousticcommunication AT gangyang dopplercompensationtechniquesformarysequencespreadspectrumsignalsbasedoncorrelationcostfactorsinmobileunderwateracousticcommunication |