Genetic Programming Method for Satellite System Topology and Parameter Optimization

Table 2

Subsystem level constraints.

Subsystem	Parameter name	Symbol	Bounds
ADCS	Attitude measurement accuracy requirements/°		≤0.001
	Attitude pointing accuracy requirements/°		≤0.001
	Attitude stability accuracy requirements/°/s		≤0.001
	Attitude maneuver angular velocity requirements/°/s		≥0.01
	Orbit control accuracy requirements/m		≤1
	Minimum orbit control acceleration/m/s^2		≥0.05
Payload	Minimum coverage bandwidth/m		≥50000
	Minimum image SNR/db		≥50
Power	Maximum discharge depth/%		≤35
	Average eclipse factor		≤0.9
Propulsion	Propellant extrusion efficiency		≥0.9
TTC	Minimum quality requirement/db		≥0.1
	Minimum requirement ERIP/dbw		≥1.0e-6
Thermal	Satellite equilibrium temperature/°C		0~50
	Satellite temperature range/°C		0~50
Structure	Axial frequency/Hz		≥24
	Lateral frequency/Hz		≥10
	Effective space diameter of fairing/m		≤3.5
	Effective space height of fairing/m		≤6
	Satellite volume/m^3		≥1
	Structural reliability factor		≥1