Volume 36, Number 4, August 2018
|Page(s)||611 - 617|
|Published online||24 October 2018|
Geomagnetic Gradient Bionic Navigation Based on Parallel Approach Method
Institute of Precision Guidance and Control, Northwestern Polytechnical University, Xi’an 710072, China
Priori geomagnetic information is important to the geomagnetic navigation. However in practice, the precision of the geomagnetic information is a greatly constraint to the development of the geomagnetic navigation. In order to solve this problem, this paper present a geomagnetic gradient bionic navigation method based on parallel approach without any priori information. Inspired by the evidence that many creatures can navigate using the Earth magnetic field, the navigation process can be considered as a convergence of multi-objective problem, and develop the bionics navigation model. By introducing the parallel approach method to the navigation process, the heading angle can be estimated with the information of magnetic field gradient. The simulation results show the proposed method is able to navigation effectively without magnetic priori information, just rely on the actual geomagnetic measurement, which has implies potential application in the future.
Key words: geomagnetic navigation / geomagnetic gradient / parallel approach method / bionic navigation / constrained optimization
关键字 : 地磁导航 / 梯度 / 平行接近法 / 仿生导航 / 约束优化
© 2018 Journal of Northwestern Polytechnical University. All rights reserved.
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