TY - GEN
T1 - Qualitative assessment of the RCS reduction benefits on detection probability of an armed helicopter
AU - Pei, Yang
AU - Guo, Ting
AU - Dong, Qiang
AU - Song, Bi Feng
PY - 2011
Y1 - 2011
N2 - The ability of a threat system to quickly detect, locate, identify, and accurately track an armored helicopter has a significant influence upon the safety of the target. RCS (radar cross section) reduction is a major consideration in the design of a stealthy armed helicopter. This paper is to provide a systematic method for qualitatively assessing the RCS reduction benefits on the helicopter detection probability. Considering the helicopter radar scatter signal of mirror reflection and edge diffraction at high radar frequency, the RCS computation methods of PO (physical optics) and ILDC (increment length diffraction coefficient) are firstly introduced. Then probability theory is employed to predict the radar detection probability. Moreover, two hypothesis armed helicopters, in which one is conventionally designed and another is stealthily designed with radar absorbent material, are used as an example to illustrate the feasibility of the proposed method. Analysis shows that the benefits of radar signature reduction (i.e., radar absorbent material) include a decrease in the radar detection probability and an increase in the effectiveness of any radar countermeasures.
AB - The ability of a threat system to quickly detect, locate, identify, and accurately track an armored helicopter has a significant influence upon the safety of the target. RCS (radar cross section) reduction is a major consideration in the design of a stealthy armed helicopter. This paper is to provide a systematic method for qualitatively assessing the RCS reduction benefits on the helicopter detection probability. Considering the helicopter radar scatter signal of mirror reflection and edge diffraction at high radar frequency, the RCS computation methods of PO (physical optics) and ILDC (increment length diffraction coefficient) are firstly introduced. Then probability theory is employed to predict the radar detection probability. Moreover, two hypothesis armed helicopters, in which one is conventionally designed and another is stealthily designed with radar absorbent material, are used as an example to illustrate the feasibility of the proposed method. Analysis shows that the benefits of radar signature reduction (i.e., radar absorbent material) include a decrease in the radar detection probability and an increase in the effectiveness of any radar countermeasures.
KW - Detection
KW - Probability
KW - Radar absorbent material
KW - Radar cross section
UR - http://www.scopus.com/inward/record.url?scp=79957747165&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.55-57.1535
DO - 10.4028/www.scientific.net/AMM.55-57.1535
M3 - 会议稿件
AN - SCOPUS:79957747165
SN - 9783037850992
T3 - Applied Mechanics and Materials
SP - 1535
EP - 1540
BT - Recent Trends in Materials and Mechanical Engineering Materials, Mechatronics and Automation
T2 - 2011 International Conference on Recent Trends in Materials and Mechanical Engineering, ICRTMME 2011
Y2 - 27 January 2011 through 28 January 2011
ER -