Continuous phase modulation (CPM) is a strategy for the modulation of information. This is generally utilized in wireless modems. In contrast to other coherent digital phase modulation strategies where the carrier phase suddenly resets, with CPM the carrier phase is modulated in a continuous way. CPM is executed as a constant-envelope waveform. Therefore, CPM is attractive because the phase continuity outputs high spectral efficiency and the consistent envelope excellent power efficiency outputs.