Theoretical and experimental study on time-domain monopole time reversal method with excluding autocorrelation
Source abstract
Abstract
Monopole time reversal is an advanced noise source localization technique, but its sidelobe level in localizing sound sources is greatly affected by noise, leading to a decrease in the accuracy of sound source localization under a low signal-to-noise ratio. To address this issue, this paper proposes a time-domain monopole time reversal technique that excludes autocorrelation to reduce the impact of noise on sound source localization results. Numerical simulation and experimental results show that, compared to conventional monopole time reversal techniques, the proposed method can effectively reduce the sidelobes in sound source localization results and achieve accurate sound source localization under −20 dB low signal-to-noise ratio conditions.
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Research context
OpenAlex topics: Geophysical Methods and Applications · Microwave Imaging and Scattering Analysis · Ultrasonics and Acoustic Wave Propagation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Power Research Institute of State Grid Shaanxi Electric Power Company Limited 1 , Xi ’an 710100, China
State Grid (Xi ’an) Environmental Protection Technique Center Co. Limited 2 , Xi ’an 710100, China
Funding
Science and Technology Project of State Grid Shaanxi Electric Power Company Limited
References (17)
Show source-provided references
1. Method of superposition applied to patch near-field acoustic holography10.1121/1.1945470 ↗
2. Tikhonov regularized penalty matrix construction method based on the magnitude of singular values and its application in near-field acoustic holography10.1016/j.ymssp.2022.108870 ↗
3. Equivalent source method-based nearfield acoustic holography in a moving medium10.1115/1.4036498 ↗
4. Time-domain delay-and-sum beamforming for time-reversal detection of intermittent acoustic sources in flows10.1121/1.4897402 ↗
5. Compressed delay-and-sum beamforming for ultrafast ultrasound imaging
6. A generalized minimax-concave penalty based compressive beamforming method for acoustic source identification10.1016/j.jsv.2021.116017 ↗
7. Time reversal of ultrasonic fields. I: Basic principles10.1109/58.156174 ↗
8. A point-like enhanced resolution of experimental Aeolian tone using an iterative point-time-reversal-sponge-layer damping technique10.1016/j.ymssp.2020.107411 ↗
9. A single-channel virtual receiving array using a time-reversal chaotic cavity10.1121/10.0020832 ↗
10. Focusing properties of near-field time reversal10.1103/physreva.76.065801 ↗
11. On time reversal mirrors10.1088/0266-5611/25/9/095010 ↗
12. Super-resolution imaging of low-frequency sound sources using a corrected monopole time reversal method10.1016/j.jsv.2017.08.039 ↗
13. Interferometric time reversal MUSIC for small scatterer localization10.2528/pier12062103 ↗
14. High-resolution noise source focusing localization based on combination array in dock environment10.11990/jheu.201704025 ↗
15. A comparison of equivalent source method and monopole time reversal method for noise source localization10.1115/1.4040047 ↗
16. Low-frequency acoustic source localization based on the cross-spectral time reversal method corrected in wavenumber domain10.1016/j.measurement.2021.110579 ↗
17. Focusing with plane time-reversal mirrors: An efficient alternative to closed cavities10.1121/1.407457 ↗