Title :
Vegetation Effects on Passive Microwave Measurements
Author :
Tishchenko, Yu. ; Chukhlantsev, A. ; Marechek, S. ; Novichikhin, E. ; Golovachev, S. ; Kancheva, R. ; Borisova, D. ; Nikolov, H. ; Georgiev, G.
Author_Institution :
Russian Acad. of Sci., Moscow
Abstract :
The developed laboratory waveguide transmission system for measuring the attenuation of microwaves by vegetation canopies is discussed. Some results obtained for the attenuation effects by fragments of trees in the frequency band 0.8 -10.0 GHz are presented. The waveguide transmission system and the measuring procedure provide the acquiring of continuous attenuation spectra in a wide frequency band under controlled vegetation parameters. The propagation characteristics of the electromagnetic waves in the ultra-wide band waveguide transmission system are similar to the propagation characteristics in the free space. This makes possible to use the laboratory results in practice.
Keywords :
attenuation measurement; electromagnetic wave propagation; microwave measurement; vegetation; vegetation mapping; continuous attenuation spectra; electromagnetic wave propagation characteristics; frequency 0.8 GHz to 10.0 GHz; laboratory waveguide transmission system; microwaves attenuation measurement; passive microwave measurements; ultrawide band waveguide transmission system; vegetation canopies; vegetation effects; Attenuation measurement; Control systems; Electromagnetic measurements; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic waveguides; Frequency measurement; Laboratories; Microwave measurements; Vegetation;
Conference_Titel :
Recent Advances in Space Technologies, 2007. RAST '07. 3rd International Conference on
Conference_Location :
Istanbul
Print_ISBN :
1-4244-1057-6
Electronic_ISBN :
1-4244-1057-6
DOI :
10.1109/RAST.2007.4283997
