The Efficient Method for Calculating the Physical Optics Scattered Fields from the Concave Surfaces

Figure 7

Comparisons of the NSDP method, the HFA method, and the BF method of calculating the scattered field from the patch given in Figure 6 in aspects of (a) RCS values results, (b) accuracy (relative error), and (c) consumed CPU time.

(a)

(b)

(c)