Angle Estimation Error Reduction Method Using Weighted IMM

Choi, Seonghee; Song, Taeklyul

doi:2015.18.1.84

J. KIMS Technol > Volume 18(1); 2015 > Article

Journal of the Korea Institute of Military Science and Technology 2015;18(1):84-92.
DOI: https://doi.org/10.9766/KIMST.2015.18.1.084

Angle Estimation Error Reduction Method Using Weighted IMM

Seonghee Choi, Taeklyul Song

¹The 3rd Research and Development Institute, Agency for Defense Development
²Department of Electronics System Engineering, Hanyang University

Weighted IMM 기법을 사용한 각도 추정 오차 감소 기법

최성희, 송택렬

¹국방과학연구소 제3기술연구본부
²한양대학교 전자시스템공학과

Abstract

This paper proposes a new approach to reduce the target estimation error of the measurement angle, especially applied to the medium and long range surveillance radar. If the target has no maneuver and no change in heading direction for a certain time interval, the predicted angle of interacting multiple model(IMM) from the previous track information can be used to reduce the angle estimation error. The proposed method is simulated in 2 scenarios, a scenario with a non-maneuvering target and a scenario with a maneuvering target. The result shows that the new fusion solution(weighted IMM) with the predicted azimuth and the measured azimuth is worked properly in the two scenarios.

Key Words: IMM(Interacting Multiple Model), Angle Estimation Error, WIMM(Weighted IMM)