Long-Time Coherent Integration for Frequency Hopping Pulse Signal via Phase Compensation
Long time coherent integration technique is one of the most important methods to improve the radar detection ability of a weak maneuvering target. However, the integration performance may be greatly influenced by the range migration and Doppler migration effects caused by the complex motions of mane...
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| Format: | Article |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8990092/ |
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| author | Gang Chen Jun Wang Luo Zuo Dawei Zhao |
| author_facet | Gang Chen Jun Wang Luo Zuo Dawei Zhao |
| author_sort | Gang Chen |
| collection | DOAJ |
| description | Long time coherent integration technique is one of the most important methods to improve the radar detection ability of a weak maneuvering target. However, the integration performance may be greatly influenced by the range migration and Doppler migration effects caused by the complex motions of maneuvering targets when long time integration is applied. Besides, the frequency hopping characteristic of the transmitted signal will also result in Doppler migration which cannot be eliminated by the conventional coherent integration method. To deal with this problem, a novel coherent integration method based on phase compensation is proposed. By using the frequency hopping pattern, the Doppler migration is eliminated by adding an extra phase in the twiddle factor of Fourier Transform in this proposed method. Since the phase error is compensated, long time coherent integration can be achieved. The effectiveness of the proposed method is verified by the simulation results and the performance analysis. |
| format | Article |
| id | doaj-art-35f22cd168b84e33a0275be55bcdde53 |
| institution | Kabale University |
| issn | 2169-3536 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-35f22cd168b84e33a0275be55bcdde532025-08-22T23:10:45ZengIEEEIEEE Access2169-35362020-01-018304583046610.1109/ACCESS.2020.29727358990092Long-Time Coherent Integration for Frequency Hopping Pulse Signal via Phase CompensationGang Chen0https://orcid.org/0000-0002-1744-9408Jun Wang1https://orcid.org/0000-0002-0322-0063Luo Zuo2https://orcid.org/0000-0002-3434-6312Dawei Zhao3https://orcid.org/0000-0002-8109-1981National Laboratory of Radar Signal Processing, Xidian University, Xi’an, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an, ChinaLong time coherent integration technique is one of the most important methods to improve the radar detection ability of a weak maneuvering target. However, the integration performance may be greatly influenced by the range migration and Doppler migration effects caused by the complex motions of maneuvering targets when long time integration is applied. Besides, the frequency hopping characteristic of the transmitted signal will also result in Doppler migration which cannot be eliminated by the conventional coherent integration method. To deal with this problem, a novel coherent integration method based on phase compensation is proposed. By using the frequency hopping pattern, the Doppler migration is eliminated by adding an extra phase in the twiddle factor of Fourier Transform in this proposed method. Since the phase error is compensated, long time coherent integration can be achieved. The effectiveness of the proposed method is verified by the simulation results and the performance analysis.https://ieeexplore.ieee.org/document/8990092/Long time coherent integrationmaneuvering targetfrequency hoppingDoppler migration |
| spellingShingle | Gang Chen Jun Wang Luo Zuo Dawei Zhao Long-Time Coherent Integration for Frequency Hopping Pulse Signal via Phase Compensation IEEE Access Long time coherent integration maneuvering target frequency hopping Doppler migration |
| title | Long-Time Coherent Integration for Frequency Hopping Pulse Signal via Phase Compensation |
| title_full | Long-Time Coherent Integration for Frequency Hopping Pulse Signal via Phase Compensation |
| title_fullStr | Long-Time Coherent Integration for Frequency Hopping Pulse Signal via Phase Compensation |
| title_full_unstemmed | Long-Time Coherent Integration for Frequency Hopping Pulse Signal via Phase Compensation |
| title_short | Long-Time Coherent Integration for Frequency Hopping Pulse Signal via Phase Compensation |
| title_sort | long time coherent integration for frequency hopping pulse signal via phase compensation |
| topic | Long time coherent integration maneuvering target frequency hopping Doppler migration |
| url | https://ieeexplore.ieee.org/document/8990092/ |
| work_keys_str_mv | AT gangchen longtimecoherentintegrationforfrequencyhoppingpulsesignalviaphasecompensation AT junwang longtimecoherentintegrationforfrequencyhoppingpulsesignalviaphasecompensation AT luozuo longtimecoherentintegrationforfrequencyhoppingpulsesignalviaphasecompensation AT daweizhao longtimecoherentintegrationforfrequencyhoppingpulsesignalviaphasecompensation |