Marine strapdown inertial navigation system horizontal-damping method based on LMS (Least mean square) algorithm
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HARBIN ENG UNIV
- Publication Date
- 2018-02-09
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Abstract
Description
technical field
[0001] The invention relates to the field of navigation, in particular to a horizontal damping method for a marine strapdown inertial navigation system based on an LMS algorithm. Background technique
[0002] The strapdown inertial navigation system is an autonomous navigation system. Most carriers work in an undamped state that is not disturbed by acceleration. For aircraft, missiles and other systems with high acceleration and speed and short use time, The accumulation of errors is not serious; but for ships that have been used for a long time and whose acceleration is not too large, there will be three kinds of periodic oscillation errors, namely Schuler periodic oscillation, Foucault periodic oscillation and Earth periodic oscillation, and with the The accumulation of time, the error is divergent.
[0003] At present, scholars are trying to find an effective algorithm to suppress the Schuler oscillation error. The integrated navigation system of inertia...