A New Approach for Joint Parameter Estimation of Continuously and Non-Continuously Phase-Varying Multiple Periodic Signals

摘要

This study proposes a new approach for parameter estimation of random-phase varying multiple periodic signals. A phase-varying multiple signal is typically observed in digital communication signals wherein the phase of a signal is discretely varied due to modulation. Additionally, the study investigates the performance of the proposed method with respect to signals in which the phase varies continuously in addition to discrete phase varying. The proposed method enables blind and joint estimation of the period, the number of sources (NOS), and the fundamental waveform for each of the multiple signals. The performance of the method is verified by using a computer simulation.