212 Keysight CXG, EXG, and MXG X-Series Signal Generators Programming Guide
Creating and Downloading Waveform Files
Understanding Waveform Data
I and Q Interleaving
When you create the waveform data, the I and Q data points typically reside in
separate arrays or files. The signal generator requires a single I/Q file for
waveform data playback. The process of interleaving creates a single array with
alternating I and Q data points, with the Q data following the I data. This array
is then downloaded to the signal generator as a binary file. The interleaved file
comprises the waveform data points where each set of data points, one I data
point and one Q data point, represents one I/Q waveform point.
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