![Sensors | Free Full-Text | A Signal Processing Approach with a Smooth Empirical Mode Decomposition to Reveal Hidden Trace of Corrosion in Highly Contaminated Guided Wave Signals for Concrete-Covered Pipes Sensors | Free Full-Text | A Signal Processing Approach with a Smooth Empirical Mode Decomposition to Reveal Hidden Trace of Corrosion in Highly Contaminated Guided Wave Signals for Concrete-Covered Pipes](https://www.mdpi.com/sensors/sensors-17-00302/article_deploy/html/images/sensors-17-00302-g001-550.jpg)
Sensors | Free Full-Text | A Signal Processing Approach with a Smooth Empirical Mode Decomposition to Reveal Hidden Trace of Corrosion in Highly Contaminated Guided Wave Signals for Concrete-Covered Pipes
![Basic tone-burst signal in the time (top) and frequency (bottom) domains | Download Scientific Diagram Basic tone-burst signal in the time (top) and frequency (bottom) domains | Download Scientific Diagram](https://www.researchgate.net/publication/323777530/figure/fig2/AS:614298082615296@1523471484000/Basic-tone-burst-signal-in-the-time-top-and-frequency-bottom-domains.png)
Basic tone-burst signal in the time (top) and frequency (bottom) domains | Download Scientific Diagram
![Recovered spectrum for two-tone signal where two frequencies are very... | Download Scientific Diagram Recovered spectrum for two-tone signal where two frequencies are very... | Download Scientific Diagram](https://www.researchgate.net/profile/Jian-Wu-26/publication/254058698/figure/fig5/AS:298094618005509@1448082703703/Recovered-spectrum-for-two-tone-signal-where-two-frequencies-are-very-close-Inset.png)
Recovered spectrum for two-tone signal where two frequencies are very... | Download Scientific Diagram
![Decomposition of a one-tone signal using UPEMD with í µí² í µí²' = 2... | Download Scientific Diagram Decomposition of a one-tone signal using UPEMD with í µí² í µí²' = 2... | Download Scientific Diagram](https://www.researchgate.net/publication/325797120/figure/fig3/AS:638115165261824@1529149919292/Decomposition-of-a-one-tone-signal-using-UPEMD-with-i-i-i-i-2-and-16-The.png)
Decomposition of a one-tone signal using UPEMD with í µí² í µí²' = 2... | Download Scientific Diagram
![Pure tone. A) Signal. B) Spectrum. Object 1-2. Pure tone (WAV file, 32 KB). | Download Scientific Diagram Pure tone. A) Signal. B) Spectrum. Object 1-2. Pure tone (WAV file, 32 KB). | Download Scientific Diagram](https://www.researchgate.net/publication/23558616/figure/fig13/AS:667041912586245@1536046593530/2-Pure-tone-A-Signal-B-Spectrum-Object-1-2-Pure-tone-WAV-file-32-KB.png)
Pure tone. A) Signal. B) Spectrum. Object 1-2. Pure tone (WAV file, 32 KB). | Download Scientific Diagram
![Dual Tone Multi Frequency (DTMF) signal generation and detection using MATLAB software | Semantic Scholar Dual Tone Multi Frequency (DTMF) signal generation and detection using MATLAB software | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/4826a18dc4c29eb77f915d6ce4ba5c3e93738c31/4-Figure3-1.png)
Dual Tone Multi Frequency (DTMF) signal generation and detection using MATLAB software | Semantic Scholar
![digital communications - Difference between single tone and dual tone signals? - Signal Processing Stack Exchange digital communications - Difference between single tone and dual tone signals? - Signal Processing Stack Exchange](https://i.stack.imgur.com/qRJfJ.png)