[1]LI Ming.Inhibition of oscillation using Doppler external velocity damping in navigation of unmanned submarine[J].CAAI Transactions on Intelligent Systems,2018,13(2):322-326.[doi:10.11992/tis.201612039]
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Inhibition of oscillation using Doppler external velocity damping in navigation of unmanned submarine

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 13 Number of periods: 2018 2 Page number: 322-326 Column: 学术论文—智能系统 Public date: 2018-04-15
Title:
Inhibition of oscillation using Doppler external velocity damping in navigation of unmanned submarine
Author(s):
LI Ming
Navy Military Representative Office in Jinzhou, Jinzhou 121000, China
Keywords:
unmanned submarine; inertial navigation systems; oscillation; Doppler effect; damping; velocity measurement; difference
CLC:
TP18;U666
DOI:
10.11992/tis.201612039
Abstract:
In this paper, a method of oscillation inhibiting by using Doppler external velocity damping in unmanned submarine navigation is proposed in order to inhibit the effect of Schuler oscillation on the navigation accuracy of unmanned submarines. Unmanned Submarines often need to stay or navigate underwater for a long period of time because of their special working requirements, and cannot surface often in order to calibrate their position through GPS, due to the need of operating while hidden. When an unmanned submarine is used for a short period of time, the Schuler oscillation will not have a significant influence. However, when it navigates for a long time, the error produced by Schuler oscillation cannot be ignored. In order to solve this problem, this paper proposes an external velocity damping network. A weighted fusion algorithm for external velocity is proposed in order to obtain more accurate information on velocity. The results obtained by the comparison to a non-damping system through simulation experiments verified that the external velocity damping network could effectively inhibit the effect of Schuler oscillation on the system, when an unmanned submarine navigated for a long period of time.
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