The range of application of uniform geometrical theory of diffraction (UTD) is discussed. It is pointed out that UTD is valid when a source is near the diffractionedge.
讨论了一致性几何绕射理论（UTD）的适用范围，并提出其适合于源离绕射边近的处理方法。
2
At this time the simulator does not implement surface travelling wave modelling and associated edge or gap backscatter modelling, or edgediffraction scattering effect modelling.
这次模拟器没有对表面行波、相邻边界和缝隙的反向散射，或者边缘绕射散射效应进行建模。
3
This reference point was used in the design to minimize the influence of baffle edgediffraction.