Phase/ Frequency Offset
Applies phase and frequency offsets to a complex base signal.
blockType: PhaseFrequencyOffset
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Path in the library: |
Description
The Phase/Frequency Offset block applies phase and frequency offsets to the complex base signal.
Ports
Input
In — input signal
scalar | vector | the matrix
A complex input signal specified as a scalar, vector, or matrix. The port is unnamed until the Frequency offset from port parameter is enabled.
Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool
Support for complex numbers: Yes
Frq — pass frequency offset:q[<br>] scalar | vector | the matrix
The frequency offset specified as a scalar, a vector with the same number of rows or columns as the input signal, or a matrix with the same dimensions as the input signal.
Dependencies
To use this port, check the box for the Frequency offset from port parameter.
Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool
Parameters
Phase offset (deg) — phase offset
0 (by default) | scalar | vector | the matrix
The phase offset in degrees, specified as a scalar, vector, or matrix.
If Phase offset (deg) and Frequency offset (Hz) are not scalar, then they must have the same size.
Frequency offset from port — adding a port to set the frequency offset
disabled (by default) | enabled
Select the checkbox to display the Frq port.
-
enabled— The Frq port is displayed on the block icon. The frequency offset is set by the signal on this port. -
turned off— the Frq port is hidden. The frequency offset is set by the parameter Frequency offset (Hz).
Frequency offset (Hz) — pass frequency offset:q[<br>] 0 (by default) | scalar | vector | the matrix
The frequency offset in hertz, specified as a scalar, a vector with the same number of rows or columns as the input signal, or a matrix with the same dimensions as the input signal.
If Phase offset (deg) and Frequency offset (Hz) are not scalar, then they must have the same size.
Dependencies
To use this parameter, uncheck Frequency offset from port.
Algorithms
If the input signal is , then the output signal has the form
,
Where
-
— frequency offset;
-
— phase shift.
The output signal in discrete time has the form:
and
,
Where , and — the interval between the calculation steps.