Focusing of Spotlight Tandem-Configuration Bistatic Data with Frequency Scaling Algorithm

Table 3

Quality parameters of impulse-response function of the center target by using different algorithms for Cases II and III.

	Range			Azimuth
	Resolution (m)	PSLR (dB)	ISLR (dB)	Resolution (m)	PSLR (dB)	ISLR (dB)
Case II (the proposed)	0.75	−13.2537	−9.7736	1.0625	−13.2740	−9.7137
Case II (the MSR based)	0.75	−13.2464	−9.7753	1.0625	−13.2728	−9.7131
Case II (the DMO based)	0.75	−13.2636	−9.7792	5.8125	−0.0102	5.1913
Case III (the proposed)	0.75	−13.2346	−9.7749	1.0625	−13.2725	−9.7115
Case III (the MSR based)	0.75	−13.2579	−9.7751	1.0625	−13.2721	−9.7087
Case III (the DMO based)	0.75	−13.2427	−9.7687	5.9375	−00005	8.2978