Howtosignalprocessing
What is a notch filter used for?
Notch filters are used to remove a single frequency or a narrow band of frequencies. In audio systems, a notch filter can be used to remove interfering frequencies such as powerline hum. Notch filters can also be used to remove a specific interfering frequency in radio receivers and software-defined radio.
Which filter remove periodic noise?
Adaptive Gaussian notch filter for removing periodic noise from digital images.
What is optimum notch filter?
The proposed adaptive optimum notch filter, the mean and median filters in the frequency domain are used to reduce the effects of different periodic noises in different sample images.
