Rapid Simulation of Temporal-Spatial Correlated 3D Sea Clutter

Table 2

Comparison of the consumed time in the simulations of 3D sea clutter with different sizes of scenes and sampling number at t direction.

The size of scene (m^2)		50 × 50			100 × 100	200 × 200
Sampling number at t direction		128	256	512	128	128
Time (sec)	Statistical model	1.81	3.56	7.79	7.37	28.92
	EM model	14.56	29.73	59.18	58.68	234.66

Calculated by a computer with Intel(R) Core(TM) i7-6700 CPU @ 3.40 GHz.