Signal processing
Signal processing is a subfield of Electrical engineering and Applied mathematics that deals with the analysis, modification, and synthesis of signals, which are functions that convey information. It involves the use of various techniques to extract useful information from signals, remove noise, and improve signal quality. Signal processing has numerous applications in fields such as Audio engineering, Image processing, and Telecommunications. The field relies heavily on mathematical concepts like Fourier analysis and Linear algebra, and is closely related to other areas like Control theory and Machine learning. Researchers like Bernhard Riemann have made significant contributions to the development of signal processing techniques.