Difference between revisions of "Heterodyne.m"
(Created page with "{{DISPLAYTITLE:heterodyne.m}} __NOTOC__ Signal heterodyne from wall clock time into the rotating frame. Uses a GPU if one is available. ==Syntax== heterodyne(dt,exp_dat...") |
(Sync syntax/arguments/outputs with current Spinach source) |
||
| Line 1: | Line 1: | ||
{{DISPLAYTITLE:heterodyne.m}} __NOTOC__ | {{DISPLAYTITLE:heterodyne.m}} __NOTOC__ | ||
| + | |||
Signal heterodyne from wall clock time into the rotating frame. Uses a GPU if one is available. | Signal heterodyne from wall clock time into the rotating frame. Uses a GPU if one is available. | ||
==Syntax== | ==Syntax== | ||
| − | + | [X,Y]=heterodyne(dt,signal,freq) | |
==Arguments== | ==Arguments== | ||
| − | + | dt - time step in the input data, seconds | |
signal - wall clock time signal, a column vector | signal - wall clock time signal, a column vector | ||
| Line 16: | Line 17: | ||
==Outputs== | ==Outputs== | ||
| − | + | X, Y - in-phase and out-of-phase parts of the | |
rotating frame | rotating frame | ||
==Notes== | ==Notes== | ||
| + | |||
The signal must be sampled with at least four points per period of the frequency being demodulated. | The signal must be sampled with at least four points per period of the frequency being demodulated. | ||
==See also== | ==See also== | ||
| + | |||
[[Optimal control module]] | [[Optimal control module]] | ||
''Version 2.9, authors: [[Anupama Acharya]], [[Ilya Kuprov]]'' | ''Version 2.9, authors: [[Anupama Acharya]], [[Ilya Kuprov]]'' | ||
Revision as of 15:03, 5 April 2026
Signal heterodyne from wall clock time into the rotating frame. Uses a GPU if one is available.
Syntax
[X,Y]=heterodyne(dt,signal,freq)
Arguments
dt - time step in the input data, seconds
signal - wall clock time signal, a column vector freq - frequency to be demodulated, Hz
Outputs
X, Y - in-phase and out-of-phase parts of the
rotating frame
Notes
The signal must be sampled with at least four points per period of the frequency being demodulated.
See also
Version 2.9, authors: Anupama Acharya, Ilya Kuprov
