| Multi-frequency signal acquisition and phase measurement in space gravitational wave detection | |
Zhang QT(张强涛); Liu HS(刘河山) ; Dong, Peng; Li P(李磐); Luo ZR(罗子人)
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| Corresponding Author | Liu, He-Shan([email protected]) |
| Source Publication | REVIEW OF SCIENTIFIC INSTRUMENTS
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| 2024-05-01 | |
| Volume | 95Issue:5Pages:8 |
| ISSN | 0034-6748 |
| Abstract | To enhance the accuracy of phase measurement and to prevent tracking errors, it is crucial to effectively read the multi-frequency signal in space gravitational wave detection. In this paper, a novel signal acquisition method called the multi-frequency acquisition algorithm is proposed and implemented. Different from the traditional single-frequency acquisition, the signal characteristics of amplitude and frequency are both considered to better distinguish different frequency components. A phasemeter integrated with the acquisition method and narrow-bandwidth digital phase-locked loop is constructed for the method test and verification. The results show that the multi-frequency acquisition unit can capture all the frequencies of an input signal in several milliseconds. The precision is better than +/- 200 Hz under a low SNR (signal-to-noise ratio) of 0 dB. The phase noise can reach 2 mu rad/Hz(1/2) in the frequency range of 0.1-1 Hz and satisfy the requirement of the space gravitational wave detection in all frequency ranges. |
| DOI | 10.1063/5.0198104 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001222259200002 |
| WOS Keyword | TIANQIN |
| WOS Research Area | Instruments & Instrumentation ; Physics |
| WOS Subject | Instruments & Instrumentation ; Physics, Applied |
| Funding Project | National Key R&D Program of China ; [2020YFC2200104] ; [2021YFC2202902] |
| Funding Organization | National Key R&D Program of China |
| Classification | Q3 |
| Ranking | 1 |
| Contributor | Liu, He-Shan |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95310 |
| Collection | 微重力重点实验室 |
| Recommended Citation GB/T 7714 | Zhang QT,Liu HS,Dong, Peng,et al. Multi-frequency signal acquisition and phase measurement in space gravitational wave detection[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2024,95,5,:8.Rp_Au:Liu, He-Shan |
| APA | 张强涛,刘河山,Dong, Peng,李磐,&罗子人.(2024).Multi-frequency signal acquisition and phase measurement in space gravitational wave detection.REVIEW OF SCIENTIFIC INSTRUMENTS,95(5),8. |
| MLA | 张强涛,et al."Multi-frequency signal acquisition and phase measurement in space gravitational wave detection".REVIEW OF SCIENTIFIC INSTRUMENTS 95.5(2024):8. |
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