Histogram Volumetric
The Histogram Volumetric block provides a 3D time-domain view of spectra data passing a specified density threshold:
Left hand side Input:
- Spectra
The Histogram Volumetric block provides a 3D time-domain view of incoming spectra data similar to the 3D Waterfall, but allows to specify a spectral density threshold to exclude transient data or short spikes:
This block can be useful to detect overlapping pulsed signals. The following example shows pulses hopping around 2405 MHz, and a second signal fixed at 2408 MHz. This second signal is very hard to see in most views as it is overpowered by the pulses. Using the Histogram Volumetric block with increased density threshold (right side) however allows to eliminate the hopping signal and make the fixed-frequency signal clearly visible:
