{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:17:53Z","timestamp":1760149073323,"version":"build-2065373602"},"reference-count":47,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2023,6,30]],"date-time":"2023-06-30T00:00:00Z","timestamp":1688083200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Using a novel mathematical tool called the Te-gram, researchers analyzed the energy distribution of frequency components in the scale\u2013frequency plane. Through this analysis, a frequency band of approximately 12 Hz is identified, which can be isolated without distorting its constituent frequencies. This band, along with others, remained inseparable through conventional time\u2013frequency analysis methods. The Te-gram successfully addresses this knowledge gap, providing multi-sensitivity in the frequency domain and effectively attenuating cross-term energy. The Daubechies 45 wavelet function was employed due to its exceptional 150 dB attenuation in the rejection band. The validation process encompassed three stages: pre-, during-, and post-seismic activity. The utilized signal corresponds to the 19 September 2017 earthquake, occurring between the states of Morelos and Puebla, Mexico. The results showcased the impressive ability of the Te-gram to surpass expectations in terms of sensitivity and energy distribution within the frequency domain. The Te-gram outperformed the procedures documented in the existing literature. On the other hand, the results show a frequency band between 0.7 Hz and 1.75 Hz, which is named the planet Earth noise.<\/jats:p>","DOI":"10.3390\/s23136051","type":"journal-article","created":{"date-parts":[[2023,7,3]],"date-time":"2023-07-03T00:53:16Z","timestamp":1688345596000},"page":"6051","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Feature Extraction of a Non-Stationary Seismic\u2013Acoustic Signal Using a High-Resolution Dyadic Spectrogram"],"prefix":"10.3390","volume":"23","author":[{"given":"Diego","family":"Seuret-Jim\u00e9nez","sequence":"first","affiliation":[{"name":"Centro de Investigaci\u00f3n en Ingenier\u00eda y Ciencias Aplicadas, Universidad Aut\u00f3noma del Estado de Morelos, Campus Chamilpa, Ave. Universidad 1001, Col. Chamilpa, Cuernavaca CP 62209, Mexico"}]},{"given":"Eduardo","family":"Truti\u00e9-Carrero","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n en Ingenier\u00eda y Ciencias Aplicadas, Universidad Aut\u00f3noma del Estado de Morelos, Campus Chamilpa, Ave. Universidad 1001, Col. Chamilpa, Cuernavaca CP 62209, Mexico"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9908-2621","authenticated-orcid":false,"given":"Jos\u00e9 Manuel","family":"Nieto-Jalil","sequence":"additional","affiliation":[{"name":"School of Engineering and Sciences, Tecnologico de Monterrey, Atlixc\u00e1yotl 5718, Reserva Territorial Atlix-C\u00e1yotl, Puebla CP 72453, Mexico"}]},{"given":"Erick Daniel","family":"Garc\u00eda-Aquino","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n en Ingenier\u00eda y Ciencias Aplicadas, Universidad Aut\u00f3noma del Estado de Morelos, Campus Chamilpa, Ave. Universidad 1001, Col. Chamilpa, Cuernavaca CP 62209, Mexico"}]},{"given":"Lorena","family":"D\u00edaz-Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n en Ingenier\u00eda y Ciencias Aplicadas, Universidad Aut\u00f3noma del Estado de Morelos, Campus Chamilpa, Ave. Universidad 1001, Col. Chamilpa, Cuernavaca CP 62209, Mexico"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8446-6067","authenticated-orcid":false,"given":"Laura","family":"Carballo-Sigler","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n en Ingenier\u00eda y Ciencias Aplicadas, Universidad Aut\u00f3noma del Estado de Morelos, Campus Chamilpa, Ave. Universidad 1001, Col. Chamilpa, Cuernavaca CP 62209, Mexico"}]},{"given":"Daily","family":"Quintana-Fuentes","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n en Ingenier\u00eda y Ciencias Aplicadas, Universidad Aut\u00f3noma del Estado de Morelos, Campus Chamilpa, Ave. Universidad 1001, Col. Chamilpa, Cuernavaca CP 62209, Mexico"}]},{"given":"Luis Manuel","family":"Gaggero-Sager","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n en Ingenier\u00eda y Ciencias Aplicadas, Universidad Aut\u00f3noma del Estado de Morelos, Campus Chamilpa, Ave. Universidad 1001, Col. Chamilpa, Cuernavaca CP 62209, Mexico"}]}],"member":"1968","published-online":{"date-parts":[[2023,6,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Klyuev, M., Schreider, A., and Zverev, A. (2023). Shelf Fluvial Paleo Structures: Seabed Seismic Acoustic View, Springer.","DOI":"10.1007\/978-3-031-27520-3"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Jiang, C.-T., Zhou, H., Xia, M.-M., Chen, H.-M., and Tang, J.-X. (2023). A joint absorbing boundary for the multiple-relaxation-time lattice Boltzmann method in seismic acoustic wavefield modeling. Pet. 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