One-Step Crank-Nicolson Direct-Splitting Algorithm with Enhanced Absorption to Evaluate Low-Pressure Discharge for...

Area of Science:

• Space physics and engineering
• Computational electromagnetics
• Plasma physics

Background:

• Low-pressure discharge in space causes air ionization, degrading satellite sensor performance.
• Accurate modeling of ionized environments is crucial for satellite reliability.

Purpose of the Study:

• To propose a novel algorithm for evaluating satellite sensor electrical behavior under low-pressure discharge.
• To enhance the analysis of ionized air and plasma effects on satellite systems.

Main Methods:

• Development of a one-step Crank-Nicolson Direct-Splitting (CNDS) algorithm.
• Implementation within a Lorentz medium for accurate plasma analysis.
• Modification of higher-order perfectly matched layers (PML) for efficient boundary termination.

Main Results:

• The CNDS algorithm demonstrates considerable performance in low-pressure discharge evaluation.
• The modified PML formulation exhibits enhanced absorbing performance.
• Experimental validation shows significant agreement with simulation results, confirming the algorithm's effectiveness.

Conclusions:

• The proposed CNDS algorithm is effective for analyzing satellite sensor performance under low-pressure discharge.
• The enhanced PML improves the simulation accuracy for unbounded electromagnetic problems.
• The study highlights the impact of low-pressure discharge on satellite sensor functionality.