A study on continuous phase signal separation and demodulation method using stored data batch signal processing

Abstract

In this paper, we examine a signal separation method that restores the desired signal by multiplying the power component and phase component of the reference signal, which is an unmodulated signal with the same frequency as the center frequency of the desired signal. Gaussian-filtered minimum shift keying (GMSK) that has not been evaluated in previous studies for synchronous detection method and feature demodulation method. The signal separation performance of GMSK modulation was quantitatively evaluated by computer simulation. We also investigated how changes in the window function and desired to undesired signal ratio (D/U) affect signal separation and demodulation. As a result, it was found that these effects can be reduced by using Hamming.