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| A High-Accuracy, High Anti-Noise, Unbiased Frequency Estimator Based on Three CZT Coefficients for Deep Space Exploration Mission | |
Lu, Weitao1; Chen, Lue1; Wang, Zhen2 ; Cao, Jianfeng1; Ren, Tianpeng1
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| 2022-10-01 | |
| Source Publication | SENSORS
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| Volume | 22Issue:19Pages:7364 |
| Contribution Rank | 2 |
| Abstract | Deep space exploration navigation requires high accuracy of the Doppler measurement, which is equivalent to a frequency estimation problem. Because of the fence effect and spectrum leakage, the frequency estimation performances, which is based on the FFT spectrum methods, are significantly affected by the signal frequency. In this paper, we propose a novel method that utilizes the mathematical relation of the three Chirp-Z Transform (CZT) coefficients around the peak spectral line. The realization, unbiased performance, and algorithm parameter setting rule of the proposed method are described and analyzed in detail. The Monte Carlo simulation results show that the proposed method has a better anti-noise and unbiased performance compared with some traditional estimator methods. Furthermore, the proposed method is utilized to process the raw data of MEX and Tianwen-1 satellites received by Chinese Deep Space Stations (CDSS). The results show that the Doppler estimation accuracy of MEX and Tianwen-1 are both about 3 millihertz (mHz) in 1-s integration, which is consistent with that of ESA/EVN/CDSN and a little better than that of the Chinese VLBI network (CVN). Generally, this proposed method can be effectively utilized to support Chinese future deep space navigation missions and radio science experiments. |
| Keyword | Doppler unbiased frequency estimation CZT anti-noise ability Mars exploration |
| DOI | 10.3390/s22197364 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | INTERPOLATION ; REAL |
| Funding Project | Chinese Academy of Sciences Foundation of the young scholars of western[2020-XBQNXZ-019] ; National Natural Science Foundation of China (NSFC)[11973015] ; National Natural Science Foundation of China (NSFC)[11833001] |
| WOS Research Area | Chemistry ; Engineering ; Instruments & Instrumentation |
| WOS Subject | Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation |
| WOS ID | WOS:000867136500001 |
| Publisher | MDPI |
| Funding Organization | Chinese Academy of Sciences Foundation of the young scholars of western ; National Natural Science Foundation of China (NSFC) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4912 |
| Collection | 射电天文研究室_行星科学研究团组 |
| Corresponding Author | Lu, Weitao |
| Affiliation | 1.Beijing Aerosp Control Ctr, Beijing 100094, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| Recommended Citation GB/T 7714 | Lu, Weitao,Chen, Lue,Wang, Zhen,et al. A High-Accuracy, High Anti-Noise, Unbiased Frequency Estimator Based on Three CZT Coefficients for Deep Space Exploration Mission[J]. SENSORS,2022,22(19):7364. |
| APA | Lu, Weitao,Chen, Lue,Wang, Zhen,Cao, Jianfeng,&Ren, Tianpeng.(2022).A High-Accuracy, High Anti-Noise, Unbiased Frequency Estimator Based on Three CZT Coefficients for Deep Space Exploration Mission.SENSORS,22(19),7364. |
| MLA | Lu, Weitao,et al."A High-Accuracy, High Anti-Noise, Unbiased Frequency Estimator Based on Three CZT Coefficients for Deep Space Exploration Mission".SENSORS 22.19(2022):7364. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Lu-2022-A High-Accur（4187KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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