i'm woring on Real-time spectrum sensing using usrp with labview. i would like to know how to plot the usrp baseband spectral info as a 3D spectrogram over the time interval of sensing.
You can use the 3D graph from the 3D graph palette in LabVIEW.
You can use shift registers in a loop to catenate each new spectrum measurement (array) to Z matrix (which is the values matrix). This will create a kind of flow effect.