PART IV: CONCLUSION 



32. An analytical solution for the combined wave reflection and dif- 

 fraction by a vertical wedge of arbitrary wedge angle is obtained and ex- 

 pressed in Equation 26. The analytical solution is in terms of Bessel 

 functions and in nonclosed form. The computer subroutine WEDGE, written for 

 calculating the solution, is documented in Appendix A. 



33. The amplification factor diagrams for a vertical wedge of 0-deg 

 wedge angle and a vertical wedge of 90-deg wedge angle are calculated and pre- 

 sented. The calculated results indicate that the wave response in subre- 

 gion I, where the incident, reflected, and scattered waves all exist, is in a 

 very complex pattern with the amplification factor varying from 2.35 to 0.0 

 over the subregion. The wave response in subregions II and III is a rela- 

 tively simple pattern with the amplification factor decreasing from 1.15 

 roughly along the reflected wave ray reflected from the origin point to nearly 

 0.00 at the back wall of the wedge in the shadow zone. 



34. Diagrams of the special case of a vertical wedge of 0-deg wedge 

 angle can be considered complementary and extended versions to the ones pre- 

 sented in the SPM (1984). 



40 



