Roll Angular Velocity Real-time Tracking Algorithm Based on Geomagnetic Information with Frequency-locked Loop

DOI

10.2991/cmes-15.2015.73How to use a DOI?

Keywords

rocket projectile, frequency tracking, FLL, rolling frequency, Geomagnetic Information.

Abstract

A new rolling rate tracking method based on frequency-locked loop (FLL) was present in order to solve problems by low price, exact measurement and in-time correction mean for rocket projectile. The geomagnetic field component was firstly measured by magneto-resistive sensor and the frequency of signal was tracked by FLL. The geomagnetic field component regularity was analyzed in range of rocket projectile, which was changed by sine principle according to the trajectory character. The tracking algorithm of FLL was introduced in detail. In order to validate verification of the algorithm, the simulation model was build up by Matlab/Simulink. The simulation results showed that the algorithm could exactly track the frequency of the Chirp signal source from 5Hz to 18Hz. In further, the tracking algorithm was implied on sampling geomagnetic field component data of rocket projectile. The experiment results indicated that it could satisfy the missile-borne controller need of low price and high accuracy.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhen Wang
AU  - Fengqi Gao
AU  - Min Gao
AU  - Zhicai Lu
PY  - 2015/04
DA  - 2015/04
TI  - Roll Angular Velocity Real-time Tracking Algorithm Based on Geomagnetic Information with Frequency-locked Loop
BT  - Proceedings of the 2nd International Conference on Civil, Materials and Environmental Sciences
PB  - Atlantis Press
SP  - 263
EP  - 267
SN  - 2352-5401
UR  - https://doi.org/10.2991/cmes-15.2015.73
DO  - 10.2991/cmes-15.2015.73
ID  - Wang2015/04
ER  -