Journal Article

Modeling of channel characteristics for spacecraft-oriented DC power line communications

Wang, Wenze, Li, Zijun, Liu, Xiaosheng, Ma, Jinliang, Du, Baosen

2025

Overview

Spacecraft operate in a harsh environment, with a complex space electromagnetic environment, diverse loads, and high requirements for communication performance and reliability. As an optional communication technology within spacecraft, power line communication (PLC), in addition to facing the above problems, must first solve the problem of modeling channel characteristics of PLC in DC-powered environments. To this end, this paper proposes a channel analysis and modeling method for spacecraft DC PLC, gives the calculation and analysis process of W-element distribution parameters based on transmission line theory, establishes a specific cable and branch connector simulation model based on CST, and carries out a simulation study on the whole link of the cable, branch connector, and the channel of the DC PLC system. According to the simulation system, the corresponding experimental verification platform is built. The simulation and test results verify the effectiveness and accuracy of the proposed modeling method.

• Publisher: IOP Publishing
• Subject: Power lines / Simulation models / Spacecraft power supplies / Transmission lines