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

Table 4

RASR performance summary.

Beam (SW) number	1	2	3	4	5	6	7	8	9	10	11	12
Initial pattern (Avg.) [dB]	−46.39	−37.36	−37.92	−37.43	−37.57	−32.01	−32.19	−25.87	−25.79	−25.76	−26.17	−26.15
Optimized pattern (Avg.) [dB]	−54.31	−42.54	−44.83	−45.40	−42.27	−37.00	−35.66	−30.65	−31.66	−29.07	−29.08	−29.43
RASR improvement [dB]	7.92	5.18	6.91	7.97	4.70	4.99	3.47	4.78	5.87	3.31	2.91	3.28