Efficient implementation of spike removal

1. How do you remove spikes from a signal?
2. What does a median filter do?

How do you remove spikes from a signal?

Sometimes data exhibit unwanted transients, or spikes. Median filtering is a natural way to eliminate them. Consider the open-loop voltage across the input of an analog instrument in the presence of 60 Hz power-line noise.

What does a median filter do?

The median filter is the filtering technique used for noise removal from images and signals. Median filter is very crucial in the image processing field as it is well known for the preservation of edges during noise removal.