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

Table 2

Best cost function values obtained by QPSO.

α	Cost function value [dB]	α	Cost function value [dB]
(QPSO-Type 2-I)		(QPSO-Type 2-II)
1.20	5.1432	0.70	5.8545
1.00	−11.3132	0.65	3.0452
0.95	−19.3383	0.60	−13.1914
0.90	−22.8559	0.58	−21.0779
0.85	−23.5031	0.56	−21.0311
0.80	−23.2447	0.54	−21.0166
0.75	−22.9958	0.52	−20.8506
0.70	−20.6783	0.50	−20.7767
0.65	−23.3534	0.45	−19.6402
0.60	−1.5798	0.40	−19.4932