Compressive Sensing Based Space Flight Instrument Constellation for Measuring Gravitational Microlensing Parallax
In this work, we provide a compressive sensing architecture for implementing on a space based observatory for detecting transient photometric parallax caused by gravitational microlensing events. Compressive sensing (CS) is a simultaneous data acquisition and compression technique, which can greatly...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Signals |
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| Online Access: | https://www.mdpi.com/2624-6120/3/3/34 |
| _version_ | 1797482436622286848 |
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| author | Asmita Korde-Patel Richard K. Barry Tinoosh Mohsenin |
| author_facet | Asmita Korde-Patel Richard K. Barry Tinoosh Mohsenin |
| author_sort | Asmita Korde-Patel |
| collection | DOAJ |
| description | In this work, we provide a compressive sensing architecture for implementing on a space based observatory for detecting transient photometric parallax caused by gravitational microlensing events. Compressive sensing (CS) is a simultaneous data acquisition and compression technique, which can greatly reduce on-board resources required for space flight data storage and ground transmission. We simulate microlensing parallax observations using a space observatory constellation, based on CS detectors. Our results show that average CS error is less than <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>0.5</mn><mo>%</mo></mrow></semantics></math></inline-formula> using <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>25</mn><mo>%</mo></mrow></semantics></math></inline-formula> Nyquist rate samples. The error at peak magnification time is significantly lower than the error for distinguishing any two microlensing parallax curves at their peak magnification. Thus, CS is an enabling technology for detecting microlensing parallax, without causing any loss in detection accuracy. |
| first_indexed | 2024-03-09T22:32:20Z |
| format | Article |
| id | doaj.art-dd5fc43bd2504fc2b59224b5e9d2dd96 |
| institution | Directory Open Access Journal |
| issn | 2624-6120 |
| language | English |
| last_indexed | 2024-03-09T22:32:20Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Signals |
| spelling | doaj.art-dd5fc43bd2504fc2b59224b5e9d2dd962023-11-23T18:55:17ZengMDPI AGSignals2624-61202022-08-013355957610.3390/signals3030034Compressive Sensing Based Space Flight Instrument Constellation for Measuring Gravitational Microlensing ParallaxAsmita Korde-Patel0Richard K. Barry1Tinoosh Mohsenin2NASA Goddard Space Flight Center, Greenbelt, MD 20771, USANASA Goddard Space Flight Center, Greenbelt, MD 20771, USAComputer Science and Electrical Engineering Department, University of Maryland, Baltimore County, Baltimore, MD 21250, USAIn this work, we provide a compressive sensing architecture for implementing on a space based observatory for detecting transient photometric parallax caused by gravitational microlensing events. Compressive sensing (CS) is a simultaneous data acquisition and compression technique, which can greatly reduce on-board resources required for space flight data storage and ground transmission. We simulate microlensing parallax observations using a space observatory constellation, based on CS detectors. Our results show that average CS error is less than <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>0.5</mn><mo>%</mo></mrow></semantics></math></inline-formula> using <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>25</mn><mo>%</mo></mrow></semantics></math></inline-formula> Nyquist rate samples. The error at peak magnification time is significantly lower than the error for distinguishing any two microlensing parallax curves at their peak magnification. Thus, CS is an enabling technology for detecting microlensing parallax, without causing any loss in detection accuracy.https://www.mdpi.com/2624-6120/3/3/34compressive sensinggravitational microlensingspace observatory |
| spellingShingle | Asmita Korde-Patel Richard K. Barry Tinoosh Mohsenin Compressive Sensing Based Space Flight Instrument Constellation for Measuring Gravitational Microlensing Parallax Signals compressive sensing gravitational microlensing space observatory |
| title | Compressive Sensing Based Space Flight Instrument Constellation for Measuring Gravitational Microlensing Parallax |
| title_full | Compressive Sensing Based Space Flight Instrument Constellation for Measuring Gravitational Microlensing Parallax |
| title_fullStr | Compressive Sensing Based Space Flight Instrument Constellation for Measuring Gravitational Microlensing Parallax |
| title_full_unstemmed | Compressive Sensing Based Space Flight Instrument Constellation for Measuring Gravitational Microlensing Parallax |
| title_short | Compressive Sensing Based Space Flight Instrument Constellation for Measuring Gravitational Microlensing Parallax |
| title_sort | compressive sensing based space flight instrument constellation for measuring gravitational microlensing parallax |
| topic | compressive sensing gravitational microlensing space observatory |
| url | https://www.mdpi.com/2624-6120/3/3/34 |
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