A Study on Radial Velocity Transformation and Uncertainty Propagation

Ryu, Chung-Ho; Hwang, Gyu-Hwan; Jang, Yong-Sik; Kim, Moon-Ki; Choi, Ik-Hwan

doi:2013.16.2.199

J. KIMS Technol > Volume 16(2); 2013 > Article

Journal of the Korea Institute of Military Science and Technology 2013;16(2):199-206.
DOI: https://doi.org/10.9766/KIMST.2013.16.2.199

A Study on Radial Velocity Transformation and Uncertainty Propagation

Chung-Ho Ryu, Gyu-Hwan Hwang, Yong-Sik Jang, Moon-Ki Kim, Ik-Hwan Choi

시선속도 변환과 불확도 전파에 관한 연구

류충호, 황규환, 장용식, 김문기, 최익환

국방과학연구소

Abstract

In general, radial velocity of a target can be obtained by acquiring doppler frequency shift in case of a doppler radar, or can be obtained by acquiring range rate in case of a pulse radar. Then radial velocity can be converted to tangential velocity using aspect angle or position variation per unit time. These two ways have the same meaning in physically, but result in different uncertainty finally. In this paper, it is described not only the two transformation procedures to calculate tangential velocity from radar measurement data, but also the result of combined uncertainty comparison between these two procedures.

Key Words: Radial Velocity, Tangential Velocity, Uncertainty