Mr. Jiantao Zhou Profile

Jiantao Zhou

at Zhejiang Univ

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 5 November 2018 Paper

Optical design and accuracy analysis of interferometric star tracker

Juan Du, Jian Bai, Li Wang, Jiantao Zhou

Proceedings Volume 10815, 1081504 (2018) https://doi.org/10.1117/12.2501653

KEYWORDS: Stars, Interferometry, Sensors, Optical tracking, Moire patterns, Charge-coupled devices, Optical design, Star sensors, CCD image sensors, Image intensifiers

Read Abstract +

Star tracker is a high-accuracy attitude determination device widely used in spacecraft. A traditional star tracker obtain the attitude angle by calculating the centroids of star spots on photo detector. However, the directional accuracy is limited to arc-second level. In this paper, we introduce an interferometric star tracker. The interferometric star tracker improve the attitude accuracy by using interferometric components, the interference components consist of two identical gratings and several wedge plates. Tiny change of incident angle can be sensed by detecting the relative intensity of spots divided by the wedge plates. Optical design and accuracy analysis of interferometric star tracker were illustrated in this paper. The theoretical analysis indicates that accuracy of interferometric star tracker depend on the grating distance, grating period and gray level. In the laboratory experiment, the results show that that the relationship between the light intensity of each spot and incident angle can be expressed as a sinusoidal function, and the gray level difference of each spot can reach 1500, which means the accuracy can reach '' 0.2 or even higher.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years