signal (version 0.7-2)

unwrap: Unwrap radian phases

Description

Unwrap radian phases by adding multiples of 2*pi as appropriate to remove jumps.

Usage

unwrap(a, tol = pi, dim = 1)

Arguments

a

vector of phase angles in radians.

tol

tolerance for removing phase jumps.

dim

dimension with which to apply the phase unwrapping.

Value

• A vector with the unwrapped phase angles.

References

Octave Forge http://octave.sf.net

Examples

phase <- c(seq(0, 2*pi, length=500), seq(0, 2*pi, length=500))
plot(phase, type = "l", ylim = c(0, 4*pi))
lines(unwrap(phase), col = "blue")