VCH: A Velocity Measurement Method Combining HFM Signals
During sonar detection, the fuzzy function of hyperbolic frequency modulation (HFM) in the waveform of active signal is in the shape of a “oblique blade,” which leads to the coupling characteristics of its fuzzy function in the time dimension and frequency dimension. Doppler causes a frequency shift...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | http://dx.doi.org/10.1155/2024/4022298 |
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| _version_ | 1849401874327797760 |
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| author | Wei Yan Caixia Song Yuankun Peng Zeng Liang |
| author_facet | Wei Yan Caixia Song Yuankun Peng Zeng Liang |
| author_sort | Wei Yan |
| collection | DOAJ |
| description | During sonar detection, the fuzzy function of hyperbolic frequency modulation (HFM) in the waveform of active signal is in the shape of a “oblique blade,” which leads to the coupling characteristics of its fuzzy function in the time dimension and frequency dimension. Doppler causes a frequency shift in the frequency dimension and a time delay in the time dimension, which makes it impossible for a single HFM signal to measure speed accurately. However, the time delay caused by the same moving target to HFM signals with different frequency bands and different pulse widths is also different. A velocity measurement method combining HFM signals (VCH) is proposed, which employs the time delay correlation between the combined HFM signals to achieve the target distance and speed. In the VCH method, the echo signal is no longer matched and filtered as a whole but is divided into two channels and matched and filtered separately. And then, the combined HFM signals are used to obtain the distance and speed of the target. Extensive simulation results show that the proposed method can estimate the distance and speed of moving targets accurately, and it has reference value for engineering application. |
| format | Article |
| id | doaj-art-8c56d88c141e4f56b5fbc06d3cd5747b |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-8c56d88c141e4f56b5fbc06d3cd5747b2025-08-20T03:37:41ZengWileyInternational Journal of Distributed Sensor Networks1550-14772024-01-01202410.1155/2024/4022298VCH: A Velocity Measurement Method Combining HFM SignalsWei Yan0Caixia Song1Yuankun Peng2Zeng Liang3Hangzhou Institute of Applied AcousticsCollege of Science and InformationHangzhou Institute of Applied AcousticsHangzhou Institute of Applied AcousticsDuring sonar detection, the fuzzy function of hyperbolic frequency modulation (HFM) in the waveform of active signal is in the shape of a “oblique blade,” which leads to the coupling characteristics of its fuzzy function in the time dimension and frequency dimension. Doppler causes a frequency shift in the frequency dimension and a time delay in the time dimension, which makes it impossible for a single HFM signal to measure speed accurately. However, the time delay caused by the same moving target to HFM signals with different frequency bands and different pulse widths is also different. A velocity measurement method combining HFM signals (VCH) is proposed, which employs the time delay correlation between the combined HFM signals to achieve the target distance and speed. In the VCH method, the echo signal is no longer matched and filtered as a whole but is divided into two channels and matched and filtered separately. And then, the combined HFM signals are used to obtain the distance and speed of the target. Extensive simulation results show that the proposed method can estimate the distance and speed of moving targets accurately, and it has reference value for engineering application.http://dx.doi.org/10.1155/2024/4022298 |
| spellingShingle | Wei Yan Caixia Song Yuankun Peng Zeng Liang VCH: A Velocity Measurement Method Combining HFM Signals International Journal of Distributed Sensor Networks |
| title | VCH: A Velocity Measurement Method Combining HFM Signals |
| title_full | VCH: A Velocity Measurement Method Combining HFM Signals |
| title_fullStr | VCH: A Velocity Measurement Method Combining HFM Signals |
| title_full_unstemmed | VCH: A Velocity Measurement Method Combining HFM Signals |
| title_short | VCH: A Velocity Measurement Method Combining HFM Signals |
| title_sort | vch a velocity measurement method combining hfm signals |
| url | http://dx.doi.org/10.1155/2024/4022298 |
| work_keys_str_mv | AT weiyan vchavelocitymeasurementmethodcombininghfmsignals AT caixiasong vchavelocitymeasurementmethodcombininghfmsignals AT yuankunpeng vchavelocitymeasurementmethodcombininghfmsignals AT zengliang vchavelocitymeasurementmethodcombininghfmsignals |