Research on the Multi-level Geomagnetic Match Algorithm Aided Inertial Navigation Based on Entropy/ICCP Algorithm
SONG Lei
Abstract：Inertial navigation technology is a completely autonomous navigation technology.But the positioning errors of the inertial navigation accumulate when time increasing.In order to solve the problem,geomagnetic is taken to correct the inertial navigation errors in navigation.This paper studies the entropy and ICCP algo-rithm,and then proposes a multi-level geomagnetic match algorithm based on entropy/ICCP algorithm.This algorithm uses a way of rough and precise combination with multi-level multi-scale matching.The Entropy algorithm has the ability of removed the discrete points,outliers,and strong ability of anti-reference error. ICCP algorithm has the characteristics of high precision and stable match results.The simulation experiment successfully proved the algorithm can get good match results.It improves the accuracy of the entire navigation and achieves inertial navigation’s long hours working by correcting and suppressing the divergence positioning errors of INS in some extent.
Keywords：Geomagnetic matchEntropy algorithmICCPMulti-level matching
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 70-74 )