Underwater Tone Detection with Robust Coherently-Averaged Power Processor
The detection of tonal signals with unknown frequencies is an important area of study in underwater signal processing. A common approach to address this issue is to use the Discrete Fourier Transform (DFT) for observations. When a tone does not lie precisely at the discrete DFT frequency point, its...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/10/10/1505 |
| _version_ | 1827649589783560192 |
|---|---|
| author | Qichen Xie Cheng Chi Shenglong Jin Guanqun Wang Yu Li Haining Huang |
| author_facet | Qichen Xie Cheng Chi Shenglong Jin Guanqun Wang Yu Li Haining Huang |
| author_sort | Qichen Xie |
| collection | DOAJ |
| description | The detection of tonal signals with unknown frequencies is an important area of study in underwater signal processing. A common approach to address this issue is to use the Discrete Fourier Transform (DFT) for observations. When a tone does not lie precisely at the discrete DFT frequency point, its energy will leak to adjacent frequency point. This phenomenon is known as scalloping loss or Picket Fence Effect (PFE). PFE leads to the degradation of detection performance based on DFT. This paper studies the problem of robust detection in the case of PFE. A coherently-averaged power processor utilizing the information of adjacent frequency bins is designed. The results of simulations and experiments show that the proposed method is robust against PFE, and is highly suitable for tone detection in practical circumstances. |
| first_indexed | 2024-03-09T20:00:50Z |
| format | Article |
| id | doaj.art-4ad91120b3be4319bad4a2eaec774af1 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T20:00:50Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-4ad91120b3be4319bad4a2eaec774af12023-11-24T00:45:14ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-10-011010150510.3390/jmse10101505Underwater Tone Detection with Robust Coherently-Averaged Power ProcessorQichen Xie0Cheng Chi1Shenglong Jin2Guanqun Wang3Yu Li4Haining Huang5Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaThe detection of tonal signals with unknown frequencies is an important area of study in underwater signal processing. A common approach to address this issue is to use the Discrete Fourier Transform (DFT) for observations. When a tone does not lie precisely at the discrete DFT frequency point, its energy will leak to adjacent frequency point. This phenomenon is known as scalloping loss or Picket Fence Effect (PFE). PFE leads to the degradation of detection performance based on DFT. This paper studies the problem of robust detection in the case of PFE. A coherently-averaged power processor utilizing the information of adjacent frequency bins is designed. The results of simulations and experiments show that the proposed method is robust against PFE, and is highly suitable for tone detection in practical circumstances.https://www.mdpi.com/2077-1312/10/10/1505tone detectionphase compensationcoherent averagingpicket fence effectpassive sonar |
| spellingShingle | Qichen Xie Cheng Chi Shenglong Jin Guanqun Wang Yu Li Haining Huang Underwater Tone Detection with Robust Coherently-Averaged Power Processor Journal of Marine Science and Engineering tone detection phase compensation coherent averaging picket fence effect passive sonar |
| title | Underwater Tone Detection with Robust Coherently-Averaged Power Processor |
| title_full | Underwater Tone Detection with Robust Coherently-Averaged Power Processor |
| title_fullStr | Underwater Tone Detection with Robust Coherently-Averaged Power Processor |
| title_full_unstemmed | Underwater Tone Detection with Robust Coherently-Averaged Power Processor |
| title_short | Underwater Tone Detection with Robust Coherently-Averaged Power Processor |
| title_sort | underwater tone detection with robust coherently averaged power processor |
| topic | tone detection phase compensation coherent averaging picket fence effect passive sonar |
| url | https://www.mdpi.com/2077-1312/10/10/1505 |
| work_keys_str_mv | AT qichenxie underwatertonedetectionwithrobustcoherentlyaveragedpowerprocessor AT chengchi underwatertonedetectionwithrobustcoherentlyaveragedpowerprocessor AT shenglongjin underwatertonedetectionwithrobustcoherentlyaveragedpowerprocessor AT guanqunwang underwatertonedetectionwithrobustcoherentlyaveragedpowerprocessor AT yuli underwatertonedetectionwithrobustcoherentlyaveragedpowerprocessor AT haininghuang underwatertonedetectionwithrobustcoherentlyaveragedpowerprocessor |