English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

New attitude and attitude rate estimation algorithms are presented for a spacecraft using magnetometers. An attitude rate estimation algorithm solves an optimization problem to identify the unknown angular rate from the short period observations of the earth magnetic field vectors, and then, estimates the angular velocity vector of the spacecraft. An attitude estimation algorithm solves another optimization problem to identify the unknown angle from the long period observation of the earth magnetic field vector and the estimated attitude rate, and then, estimates the spacecraft attitude in terms of Euler parameters. The effectiveness of the proposed algorithms is evaluated by numerical simulations.

Attitude and Rate Estimation of a Spacecraft by Using Magnetometers