Open AccessEffect of rocket flame on high-frequency echo and its frequency energy agglomerated detection method
Author(s) -
Xia Wu,
Chen Jian-Wen,
Bao Zheng,
Guo De-Yang
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.119401
Subject(s) - rocket (weapon) , attenuation , acoustics , electromagnetic radiation , radar , materials science , physics , optics , aerospace engineering , engineering
According to the problem that the mass matter from rocket flame consumes the electron density in atmosphere and disturbs high-frequency electromagnetic wave propagation, based on the characteristic of high-frequency radar echo from rocket flame, this paper reports the physical mechanism of high-frequency electromagnetic wave attenuation and flame electromagnetic characteristics, and analyses the radar cross section characteristic of the flame and the procreant time of flame's high-frequency echo. Then the detection method of frequency energy agglomerated for flame is put forward. By simulation analysis and experimental observation, the relations among flame high-frequency echo, altitude, flame electromagnetic characteristic, electric wave frequency, angle of incidence are obtained. The detection method is reliable and can decrease false-alarm and missing-alarm.