MUESTREO:RECONSTRUCCIÓN DE SEÑALES | 17/37 | UPV

Title: SAMPLING: SIGNAL RECONSTRUCTION Description: Different ways to recover sampled signals. Camacho García, A. (2009). SAMPLING: SIGNAL RECONSTRUCTION. https://riunet.upv.es/handle/10251/4858 Automatic description: In this video, the communications professor at the Polytechnic University explains the process of reconstructing sampled signals, an essential concept in audio digitization. He begins by highlighting sampling, describing how an original analog signal is transformed by multiplying it by a delta train to be stored digitally, for example, on a CD. The speaker details the ideal procedure for recovering an analog signal from digital information, which involves converting the discrete signal into deltas with specific amplitudes and filtering it with a low-pass filter. However, he acknowledges that this ideal method is rarely used in practice, giving way to more realistic strategies such as zero-order or first-order hold reconstruction, which he presents and compares at both a practical and mathematical level. He addresses the distortions that signals undergo through hold mechanisms, showing the differences between the recovered signals and the original signal in both the time and frequency domains. Finally, he suggests that filters can help correct the distortions introduced by reconstruction methods. The video concludes by emphasizing the importance of understanding the different signal reconstruction methods and how they influence the fidelity of the recovered signal compared to the original. Author: Andrés Camacho García Course: This video is 28/51 of the course Signal Processing in Communications | Universitat Politècnica de València (UPV).    • Curso Tratamiento de señales en comunicaci...   Course: This video is 17/37 of the Signals and Communications Theory course.    • Teoría de las señales y las comunicaciones   Universitat Politècnica de València UPV: https://www.upv.es More videos at:    / valenciaupv   Access our MOOCs: https://upvx.es #Sampling #Reconstruction #Zero-Order Hold #