Ray tracing and applications to an evaporation duct model based on data from oceanographic buoy sensors

被引：5
作者：
Freitas L.L. [1 ]
Costa E. [1 ]
机构：
[1] Centro de Estudos de Telecomunicações, Pontifícia Universidade Católica do Rio de Janeiro (CETUC PUC-Rio), Rua Marquês de São Vicente 225, Rio de Janeiro RJ
来源：
Journal of Microwaves, Optoelectronics and Electromagnetic Applications | 2019年 / 18卷 / 01期
关键词：
Amplitude; Evaporation duct; Microwave; Parabolic equations; Ray tracing; Troposphere;
D O I：
10.1590/2179-10742019v18i11633
中图分类号：
学科分类号：
摘要：
The two-dimensional ray tracing method allows an easy and fast modeling of tropospheric propagation in the microwave frequency range. A version of this method that determines ray trajectories, amplitudes and delays of the electromagnetic field, as well as the propagation loss in a two-dimensional inhomogeneous environment will be described. The implemented algorithm may consider generalized maps of modified refractivity (or refractive modulus), including not only the vertical gradients, but also their horizontal variations along the path between transmitter and receiver. Next, the present paper will discuss the results from the application of a model of evaporation duct height to data from instruments installed in sea buoys located along the Brazilian coast. Finally, the results from the application of the ray-tracing model to evaporation ducts will be presented, to analyze the propagation of microwave signals in the maritime environment. These results will also be compared with corresponding ones from the software Advanced Refractive Effects Prediction System 3.6, based on the numerical solution of a parabolic equation. © 2019 SBMO/SBMag.
引用
收藏
页码：96 / 113
页数：17
相关论文
共 13 条
  • [1] Handbook on Radiometeorology, (2013)
  • [2] Paulus R.A., Practical aplication of an evaporation duct model, Radio Science, 20, pp. 887-896, (1985)
  • [3] Babin S.M., Young G.S., Carton J.A., A new model of the oceanic evaporation duct, Journal of Applied Meteorology, 36, pp. 193-204, (1997)
  • [4] Paulus R.A., Specification for Evaporation Duct Height Calculations, (1989)
  • [5] Jeske H., State and limits of prediction methods of radar wave propagation conditions over sea, Modern Topics in Microwave Propagation and Air-Sea Interaction. NATO Advanced Study Institutes Series (Series C – Mathematical and Physical Sciences), 5, pp. 130-148, (1973)
  • [6] Patterson W.L., Advanced refractive effects prediction system (AREPS), 2007 IEEE Radar Conference, pp. 891-895, (2007)
  • [7] Born M., Wolf E., ed. , (2003)
  • [8] Bean B.R., Dutton E.J., Radio Meteorology, National Bureau of Standards Monograph, 92, (1966)
  • [9] Barclay L.W., ed. , (2013)
  • [10] Dahman G., Gagnon F., Poitau G., Ship-to-ship beyond line-of-sight communications: A comparison between ray tracing simulations and PETOOL, XXXII URSI GASS, (2017)
12