Transactions of Nanjing University of Aeronautics & Astronautics
Exponential Attitude-Orbit Coordinated Control for Gravitational-Wave Detection Spacecraft Formation with Large-Scale Communication Delays
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Abstract:
This paper concerns the exponential attitude-orbit coordinated control problems for gravitational-wave detection formation spacecraft systems. Notably， the large-scale communication delays resulting from oversized inter-satellite distance of space-based laser interferometers are first modeled. Subject to the delayed communication behaviors， a new delay-dependent attitude-orbit coordinated controller is designed. Moreover， by reconstructing the less conservative Lyapunov-Krasovskii functional and free-weight matrices， sufficient criteria are derived to ensure the exponential stability of the closed-loop relative translation and attitude error system. Finally， a simulation example is employed to illustrate the numerical validity of the proposed controller for in-orbit detection missions.
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Project Supported:
This work was supported by the National Key R&D Program of China （No.2022YFC2204800） and the Graduate Student Independent Exploration and Innovation Program of Central South University （No.2024ZZTS0767）.
Clc Number:
TN925
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