User`s guide

Unwrap
5-474
5Unwrap
Purpose Unwrap the phase of a signal.
Library Signal Operations
Description The Unwrap block unwraps each input channel by adding or subtracting
appropriate multiples of to each channel element. The input can be any
matrix or 1-D vector, and must have radian phase entries. The block recognizes
phase discontinuities larger than the
Tolerance parameter setting.
The block preserves the input size, dimension, and frame status, and the
output port rate equals the input port rate.
For a detailed discussion of the Unwrap block, see the following sections:
•“Acceptable Inputs and Corresponding Output Characteristics” on
page 5-474
•“The Two Unwrap Modes” on page 5-475
•“Unwrap Method” on page 5-479
•“Definition of Phase Unwrap” on page 5-479
Acceptable Inputs and Corresponding Output Characteristics
The Unwrap block preserves the input size, dimension, and frame status, and
the output port rate equals the input port rate.
Characteristics of Valid Input Characteristics of Corresponding
Output
•Input elements must be phase
values in radians.
•Sample- or frame-based
•M-by-N 2-D matrix or a 1-D vector
•Output elements are phase
values in radians.
•Same frame status as input
•Same size and dimension as input
•Output port rate = input port rate
2π