Title :
Spectral features of the spiky sea backscattering at grazing angles
Author :
Gutnik, V.G. ; Kulemin, G.P. ; Sharapov, L.I.
Author_Institution :
Inst. of Radioastron., Nat. Acad. of Sci., Kharkov, Ukraine
Abstract :
The results of experimental investigation of signal spectral characteristics for millimeter band of radiowaves (frequency band from 10 to 140 GHz) are presented for situations when signals are scattered by the sea surface at grazing angles. The specific feature of the presented material is the special attention to two states of nonstationary scattering: a) signal intensity spikes caused by sea wave breaking and b) pauses when this effect is absent. From the point of view of data statistical processing this phenomena is connected with the necessity of process analysis for short time intervals during which processes can be considered as stationary
Keywords :
backscatter; electromagnetic wave scattering; millimetre wave propagation; radar theory; rough surfaces; statistical analysis; 10 to 140 GHz; data statistical processing; grazing angles; millimeter band; nonstationary scattering; process analysis; sea surface; sea wave breaking; signal intensity spikes; signal scattering; signal spectral characteristics; spiky sea backscattering; Backscatter; Frequency; Friction; RF signals; Radar scattering; Rough surfaces; Sea surface; Spectral analysis; Surface roughness; Wind speed;
Conference_Titel :
Physics and Engineering of Millimeter and Sub-Millimeter Waves, 2001. The Fourth International Kharkov Symposium on
Conference_Location :
Kharkov
Print_ISBN :
0-7803-6473-2
DOI :
10.1109/MSMW.2001.946874
