Abstract : Modern electronic and communication systems rely fundamentally on signal processing techniques, where information is represented in either analog or digital form. This study provides a structured comparison between these two signal categories, focusing on their operational behavior, performance characteristics, and practical relevance in contemporary technology. Analog signals describe physical quantities in a continuously varying manner, offering high fidelity representation of natural phenomena. However, their susceptibility to noise and distortion limits their efficiency in complex systems. Conversely, digital signals represent information in discrete levels, typically binary form, which enhances stability, accuracy, and compatibility with computational systems. The paper discusses the strengths and limitations of both signal types and highlights their combined use in modern hybrid electronic architectures.
Din et al. (Sat,) studied this question.