| Signal Processing Toolbox | Help Desk |
unwrap
Unwrap phase angles.
p = unwrap(p)
p = unwrap(p)
p by adding multiples of 
, where needed, to smooth the transitions across branch cuts. When p is a matrix, unwrap corrects the phase angles down each column. The phase must be in radians.
This function is part of the standard MATLAB environment.
unwrap tries to detect branch cut crossings, but it can be fooled by sparse, rapidly changing phase values.