Title :
Visual discrete GTD ray path tracing on aircraft
Author :
Bingqie, Wang ; Xiaolei, Zhang ; Guoqi, Zeng ; Donglin, Su
Author_Institution :
Sch. of Electron. & Inf. Eng., BUAA, Beijing
Abstract :
The problem of visual discrete GTD (geometrical theory of diffraction) ray path tracing on aircraft is investigated. Quickly-3D-model for electronic countermeasures aircrafts is carried out based on OpenGL. The model provides surface discrete grids data. Enough points can be achieved by minutely modeling or interpolating splines and nodes. According to Fermat principle, the length of geodesic path is calculated with the method of dynamic programming on the platform surface discrete grids served as. Visual discrete GTD ray path tracing on aircraft is realized with the method of recursive dynamic programming. This work provides an approach for quickly analyzing antenna isolation degree on early warning aircrafts, strategic reconnaissance aircrafts and electronic support aircrafts
Keywords :
aircraft; aircraft antennas; avionics; dynamic programming; geometrical theory of diffraction; interpolation; ray tracing; splines (mathematics); Fermat principle; dynamic programming; early warning aircrafts; electronic countermeasures aircrafts; electronic support aircrafts; geometrical theory of diffraction; interpolating splines; quickly-3D-model; strategic reconnaissance aircrafts; visual discrete GTD ray path tracing; Aerodynamics; Aerospace electronics; Aerospace engineering; Aircraft propulsion; Dynamic programming; Electronic countermeasures; Engine cylinders; Physical theory of diffraction; Reconnaissance; Solid modeling; Dynamic programming; GTD; Geometrical theory of diffraction; Ray path tracing; Recursive dynamic programming;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9128-4
DOI :
10.1109/MAPE.2005.1618004
