Optimization of Sparse Concentric Ring Arrays for Low Sidelobe

Table 2

The function model fits the data in Table 1.

Function model	Model parameter
	a	b	c
Linear model:	-0.1969	0.00228	0.6543	0.9602
Gauss model:	1.015	0.716	4.705	0.9168
Sine model:	1.054	0.2152	1.633	0.9018
Power model:	1.013	-0.2878		0.6812
Rational model:	5.468	4.315		0.7541
Polynomial model:	-0.1331	1.166		0.8791