Electronic apparatus
US-12165552-B2 · Dec 10, 2024 · US
Method for determining attitude of star sensor based on rolling shutter imaging
US9503653B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9503653-B2 |
| Application number | US-201313983979-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 25, 2013 |
| Priority date | Feb 18, 2013 |
| Publication date | Nov 22, 2016 |
| Grant date | Nov 22, 2016 |
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Abstract
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A method for determining an attitude of a star sensor based on a rolling shutter imaging is provided. The method comprises: optimizing a relation among an exposure time, a line readout time, an interline integral interval time and a frame processing time of an image for the rolling shutter imaging by using a rolling shutter model of an image sensor in the star sensor based on a line; predicting and extracting locations of M navigation stars comprised in a star map in the star sensor according to the optimized relation among the exposure time, the line readout time, the interline integral interval time and the frame processing time; and transferring an updated the attitude matrix and an updated angular velocity of the star sensor sequentially until a final attitude matrix and a final angular velocity of the star sensor are obtained.
First claim
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What is claimed is: 1. A method for determining an attitude of a star sensor based on a rolling shutter imaging, comprising steps of: providing a star sensor on a spacecraft, the star sensor including an image sensor, a processor, and memory; obtaining an image with the image sensor, the image having an exposure time t Int , a line readout time t rd , an interline integral interval time t ri and a frame processing time t Fp ; storing the image in the memory; S 1 : creating,…
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- H04N23/73Primary
Electricity · mapped topic
Electricity · mapped topic
- G01S3/7867Primary
Physics · mapped topic
- H04N5/2353Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9503653B2 cover?
- A method for determining an attitude of a star sensor based on a rolling shutter imaging is provided. The method comprises: optimizing a relation among an exposure time, a line readout time, an interline integral interval time and a frame processing time of an image for the rolling shutter imaging by using a rolling shutter model of an image sensor in the star sensor based on a line; predicting…
- Who is the assignee on this patent?
- Univ Tsinghua
- What technology area does this patent fall under?
- Primary CPC classification H04N23/73. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 22 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).