Title :
An experiment an MUF calculation from non-uniform 2-D distributed measurements [digital image processing and computer graphics]
Author :
Cisneros, Guillermo ; González, Rafael
Author_Institution :
ETS Ing. Telecommun., Univ. of Politecnica, Madrid, Spain
Abstract :
An automatic method is proposed for computing the values of functions over maps, at any of their points, starting from randomly distributed field punctual observations wherever possible, not wherever needed. The automation of the computation, which is made in one step, avoids a double interpolation forced by the use of level curves in conventional methods. This work is based on digital image processing and computer graphics techniques, including the resolution of nonlinear equation systems and 2-D interpolation procedures. The algorithm has been tested over MUF maps and over atmospheric noise maps
Keywords :
computational geometry; computer graphics; computerised picture processing; geophysics computing; ionospheric electromagnetic wave propagation; ionospheric techniques; radiowave propagation; telecommunications computing; MUF calculation; MUF maps; atmospheric noise maps; automatic method; computer graphics; digital image processing; maximum usable frequency; nonlinear equation systems; nonuniform 2D distributed measurements; radiowave propagation; Atmospheric measurements; Digital images; Ear; Equations; Image processing; Image resolution; Interpolation; Sea measurements; Telecommunication computing; Testing;
Conference_Titel :
Electrotechnical Conference, 1991. Proceedings., 6th Mediterranean
Conference_Location :
LJubljana
Print_ISBN :
0-87942-655-1
DOI :
10.1109/MELCON.1991.161896
