Performance Improvement of Spaceborne SAR Using Antenna Pattern Synthesis Based on Quantum-Behaved Particle Swarm Optimization

Table 3

Simulation parameters and system performance requirements of KOMPSAT-5.

Parameters	Values
Operating frequency	9.66 GHz
Altitude	550 km
Radiating element in elevation direction	32
Radiating element in azimuth direction	192
Elevation spacing	0.67 wavelength
Azimuth spacing	0.71 wavelength
Gain control bits	6 bits (0.5 dB step)
Phase control bits	6 bits (5.625-degree step)
SW requirement	≥30 km at 45-degree incidence angle
NESZ requirement	≤−17 dB at nominal access region
RASR requirement	≤−17 dB at nominal access region