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- Title
传感器位置误差下TDOA-DOA水下目标被动定位算法.
- Authors
唐强; 邵高平; 孙明磊; 邵帅
- Abstract
To address the problem of poor localization accuracy due to sensor position error in passive localization of underwater target, a two-step least squares (LS) based time difference of arrival-direction of arrival (TDOA-DOA) target localization algorithm is proposed. Firstly,an idealized error-free model of TDOADOA is constructed, and the target position is coarsely estimated through the LS algorithm. Secondly, the joint equation of target positioning error and sensor position is constructed with the measurement error and the sensor position error, and weighted LS algorithm is employed to solve the equations. Finally, the coarse estimation of the target position is corrected to obtain a more accurate localization result using target positioning error. Simulation results show that the proposed algorithm can jointly estimate both of the target position and the sensor position. Compared with the existing algorithms, the proposed algorithm has higher localization accuracy, and is more suitable for underwater target localization in the presence of sensor position errors.
- Subjects
SENSOR placement; POSITION sensors; MEASUREMENT errors; LEAST squares; ALGORITHMS
- Publication
Systems Engineering & Electronics, 2024, Vol 46, Issue 8, p2572
- ISSN
1001-506X
- Publication type
Article
- DOI
10.12305/j.issn.1001506X.2024.08.05