Simple linear digital filters are useful in many applications. Linearity is a significant practical advantage that you can exploit to develop useful classifications (such as lowpass, highpass, or ...
Most embedded engineers writing firmware have used some sort of digital filters to clean up data coming from various inputs such as ADCs, sensors with digital outputs, other processors, etc. Many ...
It appears that no particular approximate [nonlinear] filter is consistently better than any other, though . . . any nonlinear filter is better than a strictly linear one. 1 The Kalman filter is a ...