Browse

A New Fast Initial Alignment for the Helicopter

Cited 0 time in Web of Science Cited 0 time in Scopus
Authors
Yoo, Young Min; Kim, Kwang Jin; Park, Chan Gook
Issue Date
2009-05
Citation
ENC-GNSS 2009
Abstract
This paper shows a new fast initial self alignment
algorithm could be applicable to military helicopters
with INS(Inertial Navigation System).
There are a few critical problems in the
navigation system for military helicopters. First,
unlike the civil aircraft, the military helicopter could
not maintain static state for several tens minutes on
the ground in case of urgent need. Second, the
sensor noise due to rotor vibration is very severe so
that it takes more time to calculate the initial attitude
and has more large alignment error. Finally, the
soldiers loading and wind buffet effects during the
alignment can suddenly change the initial attitude of
the helicopter.
To provide solution of these critical problems, the
navigation grade strapdown IMU(Inertial
Measurement Unit) with noise caused by vibration
of a rotor is modelled and IIR filter is designed to
reject these rotor and undesirable sensor noise.
Finally, this paper proposes a new fast initial self
alignment algorithm which reduces the alignment
convergence time and enhances the alignment
accuracy.
Language
English
URI
https://hdl.handle.net/10371/21372
Files in This Item:
There are no files associated with this item.
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Others_기계항공공학부
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse