An Analysis of Error Components and Uncertainties in Near-field RCS Measurement

Seo, Mingyeong; Tae, Hyunsung; Kim, Jeongkyu; Park, Homin

doi:2020.23.4.346

J. KIMS Technol > Volume 23(4); 2020 > Article

Research Paper

시험평가 부문

Journal of the Korea Institute of Military Science and Technology 2020;23(4):346-354.
DOI: https://doi.org/10.9766/KIMST.2020.23.4.346 Published online August 5, 2020.

An Analysis of Error Components and Uncertainties in Near-field RCS Measurement

Mingyeong Seo, Hyunsung Tae, Jeongkyu Kim, Homin Park

Aerospace Technology Research Institute, Agency for Defense Development, Korea

근전계 RCS 측정 오차 요인 및 불확도 분석

서민경, 태현성, 김정규, 박호민

국방과학연구소 항공기술연구원

Correspondence: Mingyeong Seo,
Email: mkseo707@add.re.kr

Received: 18 March 2020; Revised: 3 July 2020; Accepted: 24 July 2020;

Abstract

Nowadays, it is required to apply low observable technology to weapon systems in operation or under development. Radar Cross Section(RCS) is a measure of the scattered power in an given direction when a target is illuminated by an incident wave and used as a parameter to estimate the low observable performance of weapon system. RCS of a target can be calculated by various numerical methods. However, measurement is also needed to estimate RCS of a complex target because it is difficult to estimate theoretically. To acquire reliable measurement results, an analysis of measurement uncertainty is essential. In this paper, error components and uncertainties of near-field RCS measurement system which was constructed in ASTEC(Aerospace System Test & Evaluation Center) were analyzed based on the IEEE recommended practice for radar cross-section test procedures(IEEE Std. 1502-2007) which describes the uncertainty of RCS measurement and unique error components of this near-field measurement system were also identified.

Key Words: Radar Cross Section, Error Component, Uncertainty, Near-field Measurement