Sampling is the process of converting a continuous-time signal into a discrete-time signal by taking measurements at regular intervals.

The Laplace Transform is commonly used in analog signal processing, while the Fourier Transform, Z-Transform, and Walsh-Hadamard Transform are widely used in digital signal processing.

Digital filters are used for various purposes, including noise reduction, signal enhancement, and frequency selection.

Butterworth filters are commonly used for low-pass filtering due to their maximally flat magnitude response in the passband.

The Nyquist rate is twice the highest frequency component in a signal, and it is important to ensure that the sampling rate is at least equal to the Nyquist rate to avoid aliasing.

Digital signal processing offers advantages such as flexibility, accuracy, cost-effectiveness, and the ability to implement complex algorithms easily.

Digital signal processing is widely used in communications for speech coding, image compression, radar signal processing, and various other applications.

A decimator is used to decrease the sampling rate of a digital signal.

Bessel filters are commonly used for low-pass filtering, while Butterworth, Chebyshev, and Elliptic filters can be used for both low-pass and high-pass filtering.

Reconstruction is the process of converting a discrete-time signal back into a continuous-time signal.

Image Enhancement is not a common application of digital signal processing in the field of audio processing.

A digital-to-analog converter (DAC) is used to convert a digital signal into an analog signal.

Digital signal processing is widely used in medical imaging for Magnetic Resonance Imaging (MRI), Computed Tomography (CT) Scan, Ultrasound Imaging, and various other applications.

An analog-to-digital converter (ADC) is used to convert an analog signal into a digital signal.

Image Processing is not a common application of digital signal processing in the field of control systems.