Parameter Estimation Algorithm of Frequency-Hopping Signal in Compressed Domain Based on Improved Atomic Dictionary
This paper considers the problem of estimating the parameters of a frequency-hopping signal under non-cooperative conditions. To make the estimation of different parameters independently of each other, a compressed domain frequency-hopping signal parameter estimation algorithm based on the improved...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/11/5065 |
| _version_ | 1797596747582668800 |
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| author | Weipeng Zhu Yourui Wang Hu Jin Yingke Lei |
| author_facet | Weipeng Zhu Yourui Wang Hu Jin Yingke Lei |
| author_sort | Weipeng Zhu |
| collection | DOAJ |
| description | This paper considers the problem of estimating the parameters of a frequency-hopping signal under non-cooperative conditions. To make the estimation of different parameters independently of each other, a compressed domain frequency-hopping signal parameter estimation algorithm based on the improved atomic dictionary is proposed. By segmenting and compressive sampling the received signal, the center frequency of each signal segment is estimated using the maximum dot product. The signal segments are processed with central frequency variation using the improved atomic dictionary to accurately estimate the hopping time. We highlight that one superiority of the proposed algorithm is that high-resolution center frequency estimation can be directly obtained without reconstructing the frequency-hopping signal. Additionally, another superiority of the proposed algorithm is that hopping time estimation has nothing to do with center frequency estimation. Numerical results show that the proposed algorithm can achieve superior performance compared with the competing method. |
| first_indexed | 2024-03-11T02:57:23Z |
| format | Article |
| id | doaj.art-2025ac596c08455fad6ba9cbc81e40dc |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T02:57:23Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-2025ac596c08455fad6ba9cbc81e40dc2023-11-18T08:32:04ZengMDPI AGSensors1424-82202023-05-012311506510.3390/s23115065Parameter Estimation Algorithm of Frequency-Hopping Signal in Compressed Domain Based on Improved Atomic DictionaryWeipeng Zhu0Yourui Wang1Hu Jin2Yingke Lei3Electronic Countermeasure Institute, National University of Defense Technology, Hefei 230037, ChinaElectronic Countermeasure Institute, National University of Defense Technology, Hefei 230037, ChinaElectronic Countermeasure Institute, National University of Defense Technology, Hefei 230037, ChinaElectronic Countermeasure Institute, National University of Defense Technology, Hefei 230037, ChinaThis paper considers the problem of estimating the parameters of a frequency-hopping signal under non-cooperative conditions. To make the estimation of different parameters independently of each other, a compressed domain frequency-hopping signal parameter estimation algorithm based on the improved atomic dictionary is proposed. By segmenting and compressive sampling the received signal, the center frequency of each signal segment is estimated using the maximum dot product. The signal segments are processed with central frequency variation using the improved atomic dictionary to accurately estimate the hopping time. We highlight that one superiority of the proposed algorithm is that high-resolution center frequency estimation can be directly obtained without reconstructing the frequency-hopping signal. Additionally, another superiority of the proposed algorithm is that hopping time estimation has nothing to do with center frequency estimation. Numerical results show that the proposed algorithm can achieve superior performance compared with the competing method.https://www.mdpi.com/1424-8220/23/11/5065segmentcompressive samplingmaximum dot productimproved atomic dictionaryparameter estimation |
| spellingShingle | Weipeng Zhu Yourui Wang Hu Jin Yingke Lei Parameter Estimation Algorithm of Frequency-Hopping Signal in Compressed Domain Based on Improved Atomic Dictionary Sensors segment compressive sampling maximum dot product improved atomic dictionary parameter estimation |
| title | Parameter Estimation Algorithm of Frequency-Hopping Signal in Compressed Domain Based on Improved Atomic Dictionary |
| title_full | Parameter Estimation Algorithm of Frequency-Hopping Signal in Compressed Domain Based on Improved Atomic Dictionary |
| title_fullStr | Parameter Estimation Algorithm of Frequency-Hopping Signal in Compressed Domain Based on Improved Atomic Dictionary |
| title_full_unstemmed | Parameter Estimation Algorithm of Frequency-Hopping Signal in Compressed Domain Based on Improved Atomic Dictionary |
| title_short | Parameter Estimation Algorithm of Frequency-Hopping Signal in Compressed Domain Based on Improved Atomic Dictionary |
| title_sort | parameter estimation algorithm of frequency hopping signal in compressed domain based on improved atomic dictionary |
| topic | segment compressive sampling maximum dot product improved atomic dictionary parameter estimation |
| url | https://www.mdpi.com/1424-8220/23/11/5065 |
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