, S. K. A. K. Analysis of Ultrasonic Signals based on Wavelet Cross Spectrum. International Journal on Future Revolution in Computer Science & Communication Engineering, [S. l.], v. 3, n. 11, p. 279–283, 2017. Disponível em: http://www.ijfrcsce.org/index.php/ijfrcsce/article/view/302. Acesso em: 30 apr. 2024.