Pitch and roll attitude estimation of a small-scaled helicopter using single antenna GPS with gyroscopes

Hian Kun Tenn, Shau Shiun Jan, Fei Bin Hsiao

研究成果: Article同行評審

16 引文 斯高帕斯(Scopus)

摘要

A method is presented for estimating the roll and pitch attitude of a small-scaled unmanned helicopter based on the velocity measurements of the global positioning system (GPS). The small-scaled helicopter is a radio controlled (RC) model which is readily available and affordable for academic laboratories as a research platform. Only one single antenna GPS receiver is equipped on the RC helicopter to acquire the velocity measurements needed for the attitude estimation. The velocity information is recorded by the onboard computer for post-processing. An attitude and heading reference system (AHRS) is used to provide the reference attitudes. The required angular rates and heading for this study are also given by the gyroscopes and compass of the AHRS for the sake of system's simplification. The Kalman filter is applied to estimate the helicopter's accelerations by using the GPS velocity measurements. The estimated accelerations form the fundamental elements of synthesizing the pseudo-roll and the pseudo-pitch. With some legitimate simplifications and assumptions, the relation between the helicopter's attitudes and the accelerations estimated from the GPS velocity measurements can be developed. Furthermore, to enhance the accuracy of the pseudo-attitudes, the angular rates acquired from the gyroscopes are incorporated into the estimation algorithm of pseudo-attitudes by using a complementary filter.

原文English
頁(從 - 到)209-220
頁數12
期刊GPS Solutions
13
發行號3
DOIs
出版狀態Published - 2009

All Science Journal Classification (ASJC) codes

  • 地球與行星科學(全部)

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