Dealing with data gaps for TianQin with massive black hole binary signal
Abstract Space-borne gravitational wave detectors like TianQin might encounter data gaps due to factors like micro-meteoroid collisions or hardware failures. Such events will cause discontinuity in the data, presenting challenges to the data analysis for TianQin, especially for massive black hole bi...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-01-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-13810-0 |
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| author | Lu Wang Hong-Yu Chen Xiangyu Lyu En-Kun Li Yi-Ming Hu |
| author_facet | Lu Wang Hong-Yu Chen Xiangyu Lyu En-Kun Li Yi-Ming Hu |
| author_sort | Lu Wang |
| collection | DOAJ |
| description | Abstract Space-borne gravitational wave detectors like TianQin might encounter data gaps due to factors like micro-meteoroid collisions or hardware failures. Such events will cause discontinuity in the data, presenting challenges to the data analysis for TianQin, especially for massive black hole binary mergers. Since the signal-to-noise ratio (SNR) accumulates in a non-linear way, a gap near the merger could lead to a significant loss of SNR. It could introduce bias in the estimate of noise properties, and the results of the parameter estimation. In this work, using simulated TianQin data with injected a massive black hole binary merger, we study the window function method, and for the first time, the inpainting method to cope with the data gap, and an iterative estimate scheme is designed to properly estimate the noise spectrum. We find that both methods can properly estimate noise and signal parameters. The easy-to-implement window function method can already perform well, except that it will sacrifice some SNR due to the adoption of the window. The inpainting method is slower, but it can minimize the impact of the data gap. |
| format | Article |
| id | doaj-art-d53309d900004e309c3f0609a275964c |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-d53309d900004e309c3f0609a275964c2025-02-02T12:38:36ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-01-0185211710.1140/epjc/s10052-025-13810-0Dealing with data gaps for TianQin with massive black hole binary signalLu Wang0Hong-Yu Chen1Xiangyu Lyu2En-Kun Li3Yi-Ming Hu4MOE Key Laboratory of TianQin Mission, TianQin Research Center for Gravitational Physics and School of Physics and Astronomy, Frontiers Science Center for TianQin, Gravitational Wave Research Center of CNSA, Sun Yat-sen University (Zhuhai Campus)MOE Key Laboratory of TianQin Mission, TianQin Research Center for Gravitational Physics and School of Physics and Astronomy, Frontiers Science Center for TianQin, Gravitational Wave Research Center of CNSA, Sun Yat-sen University (Zhuhai Campus)MOE Key Laboratory of TianQin Mission, TianQin Research Center for Gravitational Physics and School of Physics and Astronomy, Frontiers Science Center for TianQin, Gravitational Wave Research Center of CNSA, Sun Yat-sen University (Zhuhai Campus)MOE Key Laboratory of TianQin Mission, TianQin Research Center for Gravitational Physics and School of Physics and Astronomy, Frontiers Science Center for TianQin, Gravitational Wave Research Center of CNSA, Sun Yat-sen University (Zhuhai Campus)MOE Key Laboratory of TianQin Mission, TianQin Research Center for Gravitational Physics and School of Physics and Astronomy, Frontiers Science Center for TianQin, Gravitational Wave Research Center of CNSA, Sun Yat-sen University (Zhuhai Campus)Abstract Space-borne gravitational wave detectors like TianQin might encounter data gaps due to factors like micro-meteoroid collisions or hardware failures. Such events will cause discontinuity in the data, presenting challenges to the data analysis for TianQin, especially for massive black hole binary mergers. Since the signal-to-noise ratio (SNR) accumulates in a non-linear way, a gap near the merger could lead to a significant loss of SNR. It could introduce bias in the estimate of noise properties, and the results of the parameter estimation. In this work, using simulated TianQin data with injected a massive black hole binary merger, we study the window function method, and for the first time, the inpainting method to cope with the data gap, and an iterative estimate scheme is designed to properly estimate the noise spectrum. We find that both methods can properly estimate noise and signal parameters. The easy-to-implement window function method can already perform well, except that it will sacrifice some SNR due to the adoption of the window. The inpainting method is slower, but it can minimize the impact of the data gap.https://doi.org/10.1140/epjc/s10052-025-13810-0 |
| spellingShingle | Lu Wang Hong-Yu Chen Xiangyu Lyu En-Kun Li Yi-Ming Hu Dealing with data gaps for TianQin with massive black hole binary signal European Physical Journal C: Particles and Fields |
| title | Dealing with data gaps for TianQin with massive black hole binary signal |
| title_full | Dealing with data gaps for TianQin with massive black hole binary signal |
| title_fullStr | Dealing with data gaps for TianQin with massive black hole binary signal |
| title_full_unstemmed | Dealing with data gaps for TianQin with massive black hole binary signal |
| title_short | Dealing with data gaps for TianQin with massive black hole binary signal |
| title_sort | dealing with data gaps for tianqin with massive black hole binary signal |
| url | https://doi.org/10.1140/epjc/s10052-025-13810-0 |
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