PN Codes Estimation of Binary Phase Shift Keying Signal Based on Sparse Recovery for Radar Jammer
Parameter estimation is extremely important for a radar jammer. With binary phase shift keying (BPSK) signals widely applied in radar systems, estimating the parameters of BPSK signals has attracted increasing attention. However, the BPSK signal is difficult to be processed by traditional time frequ...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/1/554 |
| _version_ | 1797439532840255488 |
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| author | Bo Peng Qile Chen |
| author_facet | Bo Peng Qile Chen |
| author_sort | Bo Peng |
| collection | DOAJ |
| description | Parameter estimation is extremely important for a radar jammer. With binary phase shift keying (BPSK) signals widely applied in radar systems, estimating the parameters of BPSK signals has attracted increasing attention. However, the BPSK signal is difficult to be processed by traditional time frequency analysis methods due to its phase jumping and abrupt discontinuity features which makes it difficult to extract PN (PN) codes of the BPSK signal. To solve this problem, a two-step PN codes estimation method based on sparse recovery is introduced in this paper. The proposed method first pretreats the BPSK signal by estimating its center frequency and converting it to zero intermediate frequency (ZIF). The pretreatment transforms phase jumps of the BPSK signal into the level jumps of the ZIF signal. By nonconvex sparsity promoting regularization, the level jumps of the ZIF signal are extracted through an iterative algorithm. Its effectiveness is verified by numeric simulations and semiphysical tests. The corresponding results demonstrate that the proposed method is able to estimate PN codes from the BPSK signal in serious electromagnetic environments. |
| first_indexed | 2024-03-09T11:55:26Z |
| format | Article |
| id | doaj.art-42d60fae956b49818d78189ac652c6f0 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T11:55:26Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-42d60fae956b49818d78189ac652c6f02023-11-30T23:10:13ZengMDPI AGSensors1424-82202023-01-0123155410.3390/s23010554PN Codes Estimation of Binary Phase Shift Keying Signal Based on Sparse Recovery for Radar JammerBo Peng0Qile Chen1School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100089, ChinaSchool of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100089, ChinaParameter estimation is extremely important for a radar jammer. With binary phase shift keying (BPSK) signals widely applied in radar systems, estimating the parameters of BPSK signals has attracted increasing attention. However, the BPSK signal is difficult to be processed by traditional time frequency analysis methods due to its phase jumping and abrupt discontinuity features which makes it difficult to extract PN (PN) codes of the BPSK signal. To solve this problem, a two-step PN codes estimation method based on sparse recovery is introduced in this paper. The proposed method first pretreats the BPSK signal by estimating its center frequency and converting it to zero intermediate frequency (ZIF). The pretreatment transforms phase jumps of the BPSK signal into the level jumps of the ZIF signal. By nonconvex sparsity promoting regularization, the level jumps of the ZIF signal are extracted through an iterative algorithm. Its effectiveness is verified by numeric simulations and semiphysical tests. The corresponding results demonstrate that the proposed method is able to estimate PN codes from the BPSK signal in serious electromagnetic environments.https://www.mdpi.com/1424-8220/23/1/554radar jammerparameter estimationbinary phase shift keyingPN codesnonconvex total variation regularization |
| spellingShingle | Bo Peng Qile Chen PN Codes Estimation of Binary Phase Shift Keying Signal Based on Sparse Recovery for Radar Jammer Sensors radar jammer parameter estimation binary phase shift keying PN codes nonconvex total variation regularization |
| title | PN Codes Estimation of Binary Phase Shift Keying Signal Based on Sparse Recovery for Radar Jammer |
| title_full | PN Codes Estimation of Binary Phase Shift Keying Signal Based on Sparse Recovery for Radar Jammer |
| title_fullStr | PN Codes Estimation of Binary Phase Shift Keying Signal Based on Sparse Recovery for Radar Jammer |
| title_full_unstemmed | PN Codes Estimation of Binary Phase Shift Keying Signal Based on Sparse Recovery for Radar Jammer |
| title_short | PN Codes Estimation of Binary Phase Shift Keying Signal Based on Sparse Recovery for Radar Jammer |
| title_sort | pn codes estimation of binary phase shift keying signal based on sparse recovery for radar jammer |
| topic | radar jammer parameter estimation binary phase shift keying PN codes nonconvex total variation regularization |
| url | https://www.mdpi.com/1424-8220/23/1/554 |
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