Freq v Time Heatmap (Trace Data)
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The Time v Time Heatmap trace in that it provides a means of detecting deviations in a visual "heatmap" format; however, Freq v Time displays patterns in pulses across the frequency domain.
trace allows users to view patterns in frequency over time. The Freq v Time Heatmap trace is similar to theThe vertical, or y-axis, is determined by the capture length of the signal. The length of each slice, in the horizontal dimension, is determined based on ENBW/RBW, where ENBW is the Equivalent Noise Bandwidth (derived from the signal), and RBW is specified by the MeasSetup > Frequency vs. Time > ResBW parameter. This setting is specifically used for the Frequency vs. Time analysis feature, which has no effect on hardware acquisition, and is not the same as the MeasSetup>ResBW> parameter.
The Time v Time Heatmap and Freq v Time Heatmap traces process and draw a single acquisition worth of data. Every acquisition brings in new data that is drawn, and the old data is disposed.
See Also