Unknown Clutter Estimation by FMM Approach in Multitarget Tracking Algorithm

Table 1

Elliptic range of the complex clutter.

Model	Weight	Center; (×10^2m)	Long axis; (×10^2m)	Short axis; (×10^2m)
1	0.3	/	/
2	0.3	[4,2]	3	2
3	0.2	[−2, 4]	2	2
4	0.2	[2, −2]	2	2