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Tytuł:
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Evaluation of polarisation characteristics of power-line RCS at 76 GHz for helicopter obstacle detection.
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Autorzy:
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Futatsumori, S.
Morioka, K.
Kohmura, A.
Shioji, M.
Yonemoto, N.
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Temat:
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ELECTRIC potential
ELECTRIC lines
RADAR
HELICOPTERS
TRANSMISSION line theory
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Źródło:
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Electronics Letters (Wiley-Blackwell); 7/9/2015, Vol. 51 Issue 14, p1110-1111, 2p, 3 Diagrams, 1 Chart, 1 Graph
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The polarisation characteristics of a high-voltage power-line radar cross-section (RCS) at 76 GHz are experimentally evaluated to improve the detection conditions of the helicopter obstacle detection radar system. Vertical polarisation transmission and reception (V-V) are normally used to detect power lines. In addition to V-V polarisation, horizontal transmission and reception (H-H) polarisation characteristics are measured for the two types of high-voltage power lines. For V-V polarisation, the measured RCS characteristics of the power lines agree well with those previously reported at 35 and 94 GHz. However, the measured results of the H-H polarisation are almost the same as, or higher than, those of the V-V polarisation. [ABSTRACT FROM AUTHOR]
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