Phase/ Frequency Offset
Applies phase and frequency offsets to a complex base signal.
blockType: PhaseFrequencyOffset
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Path in the library: |
Description
Block Phase/ Frequency Offset applies phase and frequency offsets to a complex base signal.
Ports
Output
#
Out
—
The output signal
scalar | vector | the matrix
Details
The output signal returned as a scalar, vector, or matrix. The output signal has the same dimension and the same data type as the input signal.
| Data types |
|
| Complex numbers support |
Yes |
Input
#
In
—
The input signal
scalar | vector | the matrix
Details
A complex input signal specified as a scalar, vector, or matrix. The port is unnamed until the parameter is enabled. Frequency offset from port.
| Data types |
|
| Complex numbers support |
Yes |
#
Frq
—
frequency offset
scalar
Details
The frequency offset is defined 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 Frequency offset from port.
| Data types |
|
| Complex numbers support |
No |
Parameters
Main
#
Phase offset (deg) —
phase shift
Scalar / array of real numbers
Details
The phase offset in degrees, specified as a scalar, vector, or matrix.
If Phase offset (deg) and Frequency offset (Hz) if they are not scalar, then they must have the same size.
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |
#
Frequency offset from port —
adding a port for setting the frequency offset
Logical
Details
Select the checkbox to display the Frq port.
-
The flag is checked — the Frq port is displayed on the block icon. The frequency offset is set by the signal on this port.
-
The checkbox is not checked — the Frq port is hidden. The frequency offset is set by the parameter Frequency offset (Hz).
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
No |
#
Frequency offset (Hz) —
frequency offset
Scalar / array of real numbers
Details
The frequency offset in Hz, defined 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) if they are not scalar, then they must have the same size.
Dependencies
To use this option, uncheck the box. Frequency offset from port.
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |
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.