Investigation of the QPSK-GLSS Demodulator using Phase Space Method

Autor: G. A. Alekseev, V. E. Martirosov
Rok vydání: 2021
Předmět:
Zdroj: 2021 Systems of Signals Generating and Processing in the Field of on Board Communications.
DOI: 10.1109/ieeeconf51389.2021.9416093
Popis: The analysis of the structure of the quasi-coherent demodulator QPSK-GLSS, based on the globally linearized synchronization system (GLSS), is carried out. GLSS is an innovative structure of the phase-lock loop (PLL) system, optimized for speed in the transient mode of operation in accordance with the Pontryagin maximum principle. The paper investigates the dynamic characteristics of the structure of the QPSK-GLSS demodulator using the phase space method. Shown are the voltage diagrams and phase trajectories of the imaging point on the phase portraits of the system in the process of demodulating the QPSK signal. For the research, the methods of simulation were used in the work. The results obtained illustrate the high dynamics and structural efficiency of the remodulation construction method used in the development of the QPSK-GLSS quasi-coherent demodulator.
Databáze: OpenAIRE