State-Space Approach to Computing Spacecraft Pointing Jitter
Pointing jitter refers to unwanted line-of-sight motion incurred by a pointing system over a time window of specified duration. Jitter acts to smear images and degrade the quality of science obtainable from camera-type instruments. A recent mathematical expression for finite window pointing jitter i...
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| Veröffentlicht in: | Journal of guidance, control, and dynamics control, and dynamics, 2004-05, Vol.27 (3), p.426-433 |
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| container_title | Journal of guidance, control, and dynamics |
| container_volume | 27 |
| creator | Bayard, David S |
| description | Pointing jitter refers to unwanted line-of-sight motion incurred by a pointing system over a time window of specified duration. Jitter acts to smear images and degrade the quality of science obtainable from camera-type instruments. A recent mathematical expression for finite window pointing jitter involves the frequency-domain integral of a rational polynomial multiplied by a transcendental weighting function. Because of its complexity, the expression is generally evaluated using numerical integration. The main contribution of this paper is a state-space method for evaluating the frequency-domain integral. In particular, an exact state-space expression is developed that can be evaluated by computing a matrix exponential and solving a Liapunov equation. |
| doi_str_mv | 10.2514/1.2783 |
| format | Article |
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Jitter acts to smear images and degrade the quality of science obtainable from camera-type instruments. A recent mathematical expression for finite window pointing jitter involves the frequency-domain integral of a rational polynomial multiplied by a transcendental weighting function. Because of its complexity, the expression is generally evaluated using numerical integration. The main contribution of this paper is a state-space method for evaluating the frequency-domain integral. In particular, an exact state-space expression is developed that can be evaluated by computing a matrix exponential and solving a Liapunov equation.</description><identifier>ISSN: 0731-5090</identifier><identifier>EISSN: 1533-3884</identifier><identifier>DOI: 10.2514/1.2783</identifier><identifier>CODEN: JGCODS</identifier><language>eng</language><publisher>Reston, VA: American Institute of Aeronautics and Astronautics</publisher><subject>Applied sciences ; Cameras ; Computer science; control theory; systems ; Control theory. 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Jitter acts to smear images and degrade the quality of science obtainable from camera-type instruments. A recent mathematical expression for finite window pointing jitter involves the frequency-domain integral of a rational polynomial multiplied by a transcendental weighting function. Because of its complexity, the expression is generally evaluated using numerical integration. The main contribution of this paper is a state-space method for evaluating the frequency-domain integral. In particular, an exact state-space expression is developed that can be evaluated by computing a matrix exponential and solving a Liapunov equation.</description><subject>Applied sciences</subject><subject>Cameras</subject><subject>Computer science; control theory; systems</subject><subject>Control theory. 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Systems</topic><topic>Copyright</topic><topic>Exact sciences and technology</topic><topic>Random variables</topic><topic>Vibration</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bayard, David S</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Journal of guidance, control, and dynamics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bayard, David S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>State-Space Approach to Computing Spacecraft Pointing Jitter</atitle><jtitle>Journal of guidance, control, and dynamics</jtitle><date>2004-05-01</date><risdate>2004</risdate><volume>27</volume><issue>3</issue><spage>426</spage><epage>433</epage><pages>426-433</pages><issn>0731-5090</issn><eissn>1533-3884</eissn><coden>JGCODS</coden><abstract>Pointing jitter refers to unwanted line-of-sight motion incurred by a pointing system over a time window of specified duration. 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| ispartof | Journal of guidance, control, and dynamics, 2004-05, Vol.27 (3), p.426-433 |
| issn | 0731-5090 1533-3884 |
| language | eng |
| recordid | cdi_proquest_journals_2313801586 |
| source | Alma/SFX Local Collection |
| subjects | Applied sciences Cameras Computer science control theory systems Control theory. Systems Copyright Exact sciences and technology Random variables Vibration |
| title | State-Space Approach to Computing Spacecraft Pointing Jitter |
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