Title :
Phase unwrapping via median filtering
Author :
Loeffler, C.M. ; Leonard, R.E., Jr.
Author_Institution :
Colorado State University, Fort Collins, Colorado
Abstract :
A simple phase unwrapping algorithm is presented herein. The algorithm is formulated as non-linear system through which a sampled version of the phase is passed as a signal. The system is composed of three parts, a length 2 linear FIR filter, followed by a median filter, and a 1st order IIR filter. It is also noted that this system is an extension of a median filter in that it will remove both unit impulses and unit steps.
Keywords :
Filtering; Finite impulse response filter; IIR filters; Nonlinear filters; Polynomials; Signal processing; Signal processing algorithms; Signal restoration; Space vector pulse width modulation; Speech analysis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '84.
DOI :
10.1109/ICASSP.1984.1172671
