Demod Waveform (Bluetooth)
The trace shows the output of the GFSK Gaussian frequency shift key: A modulation scheme in which the data is first filtered by a Gaussian filter in the baseband and then modulated with a simple frequency modulation. frequency discriminator for the analyzed burst: instantaneous frequency deviation (Hz) versus time. This is the waveform from which the modulation-characteristics results (Δf1, Δf2) and the carrier drift results are computed.
Use this trace to inspect the deviation trajectory directly — for example, to see whether four-consecutive-bit patterns reach full deviation, or whether the carrier moves during the packet.
See Also
