Study on Algorithm of Estimating Object Movement Information Based on LOFIX Fixing
LIU Guiyu
ZHANG Lei
QIAO Bin
LING Zhenying
Abstract：LOFIX is the most important fixing method of passive omnidirectional sonobuoy,and continuous fixing results form movement information array.This paper fits the object movement trace using least square polynomial,then computes first and second derivative to estimate its velocity and acceleration,so it can get more movement information.Compuer simulation indicates this meth-od has good precision and robusticity when satisfying some SNR.
Keywords：passive sonobuoyLOFIX fixingpolynomial fittingderivative
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 33-36 )