摘要
根据Fresnel—Kirchhoff原理,得到了计及地面反射时的多刃峰绕射场的一般表达式,在考虑大气折射和地球凸起影响的同时,导出了双刃峰绕射场的具体公式。得到的八射线场表达式简洁且物理图象清晰,便于工程技术中应用。
Taking into account the effects of ground reflection,atmospheric refraction and the Earth's convexity,a uniform solution Of double knife-edge diffraction field is derived.This solution implies a combination of fieldsof eight rays with clear physical significance and is convenient for numerical caculation.A comparison of numericalresults of the solution with measurements is also given for a practical terrestrial path of 54.4km at 7.6 GHz.
出处
《电波科学学报》
EI
CSCD
1994年第1期22-30,共9页
Chinese Journal of Radio Science