A stable realization of apodization filtering applied to noise SAR and SAR range sidelobe suppression

EURASIP Journal on Advances in Signal Processing

Table 2 Singular values and spectrum conditions of K

Noise SAR	Filter length	300	600	900	1200	1500	1800	2100	2400	2700	3000
	σ _max	14.02	17.46	18.19	20.03	19.58	20.26	20.21	20.77	20.35	20.86
	σ_min (10^-10)	3.78	1.73	1.55	0.92	0.69	0.65	0.48	0.43	0.37	0.36
	κ(K) (10¹⁰)	3.71	10.09	11.73	21.77	28.38	31.17	42.10	48.30	54.86	57.93
General SAR	Filter length	300	400	500	600	700	800	900	1000	1100	1200
	σ _max	22.57	23.19	23.55	23.76	23.91	23.99	24.07	24.12	24.16	24.19
	σ_min (10^-10)	1.87	1.73	1.65	1.54	1.38	1.31	1.26	1.20	1.11	1.07
	κ(K) (10¹⁰)	12.07	13.40	14.27	15.42	17.33	18.31	19.10	20.10	21.76	22.61