Research on an Alpha Navigation Signal Detection Method Based on Multichannel Orthogonal Correlation
文献类型：期刊论文
| 作者 | Yan, Wenhe2,3,4; Li, Shifeng3,4 ; Ma, Xinze4; Song, Yuhang1; Yuan, Jiangbin3,4; Hua, Yu3,4
|
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 14期号:9页码:16 |
| 关键词 | VLF radio signals alpha navigation system correlation detection station identification |
| DOI | 10.3390/app14093620 |
| 英文摘要 | The Alpha navigation system is the only operating radio system based on very-low-frequency (VLF) signals that can be used to research VLF navigation, timing, and ionospheric characteristics. The detection of the Alpha navigation signal is the key step in the Alpha receiver; however, the received Alpha navigation signal is susceptible to noise and mutual interference, which deteriorates signal detection performance. This paper presents a multichannel orthogonal correlation method for Alpha navigation signal detection. Once the three frequency signals of the Alpha navigation system are obtained using a notch filter, station identification is realized using a multichannel orthogonal correlation method and signal format. The selection of key parameters and the detection performance under noise and mutual interference are analyzed. This method's detection probability exceeds 90% when the signal-to-noise ratio (SNR) is greater than -10 dB. The influence of mutual interference on the signal correlation peak is less than 1% when the signal-to-interference ratio (SIR) of the mutual interference is greater than -28 dB. The proposed method is verified using an actual signal collected using an Alpha receiver. The results show that an Alpha signal can be detected at an extremely low SNR. This method has strong practicability and satisfies the application requirements of an Alpha receiver. |
| 资助项目 | Chinese Academy of Sciences (CAS) "Light of West China" Program |
| WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001219860700001 |
| 出版者 | MDPI |
| 资助机构 | Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program ; Chinese Academy of Sciences (CAS) "Light of West China" Program |
| 源URL | [http://210.72.145.45/handle/361003/14624]  |
| 专题 | 国家授时中心_授时方法与技术研究室 |
| 通讯作者 | Li, Shifeng |
| 作者单位 | 1.Tianjin Nav Instrument Res Inst, Tianjin 300131, Peoples R China 2.China State Shipbuilding Corp, Lab Sci & Technol Marine Nav & Control, Tianjin 300131, Peoples R China 3.Chinese Acad Sci, Key Lab Time Reference & Applicat, Xian 710600, Peoples R China 4.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Wenhe,Li, Shifeng,Ma, Xinze,et al. Research on an Alpha Navigation Signal Detection Method Based on Multichannel Orthogonal Correlation[J]. APPLIED SCIENCES-BASEL,2024,14(9):16. |
| APA | Yan, Wenhe,Li, Shifeng,Ma, Xinze,Song, Yuhang,Yuan, Jiangbin,&Hua, Yu.(2024).Research on an Alpha Navigation Signal Detection Method Based on Multichannel Orthogonal Correlation.APPLIED SCIENCES-BASEL,14(9),16. |
| MLA | Yan, Wenhe,et al."Research on an Alpha Navigation Signal Detection Method Based on Multichannel Orthogonal Correlation".APPLIED SCIENCES-BASEL 14.9(2024):16. |
入库方式： OAI收割
来源：国家授时中心
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