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http://dx.doi.org/10.7776/ASK.2009.28.4.336

Target Velocity Estimation Technique Using CPA Analysis at the Moving Receiver  

Lee, Su-Hyoung (위덕대학교 에너지전기공학부)
Kim, Jeong-Soo (삼성탈레스(주))
Lee, Kyun-Kyung (경북대학교 전자전기컴퓨터학부)
Abstract
A conventional Closest Point of Approach (CPA) analysis allows a non-maneuvering moving source that is radiating a constant frequency tone to be located using doppler shifted frequency measurements obtained by a stationary receiver. The original frequency, relative speed of the target, time at the CPA, and range from the CPA to the sensor are estimated by the conventional CPA. However, this paper proposes a new CPA analysis that allows the motion parameters of a target to be estimated using the bearing and frequency measurements obtained by a moving receiver that has a constant velocity. The validity of the proposed estimation scheme is confirmed through a performance analysis and simulation study.
Keywords
CPA analysis; Target motion parameter; Moving receiver station;
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