Research on a forward‐looking scanning imaging algorithm for a high‐speed radar platform
Abstract The range and azimuth information of a target can be obtained after coherent pulse accumulation of the traditional multiframe stepped‐frequency (SF) synthesis wideband echo and spectrum analysis, and high‐resolution two‐dimensional imaging of the target can be achieved. However, the accumul...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-06-01
|
| Series: | IET Signal Processing |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/sil2.12221 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849306629182324736 |
|---|---|
| author | Sijia Liu Minghai Pan |
| author_facet | Sijia Liu Minghai Pan |
| author_sort | Sijia Liu |
| collection | DOAJ |
| description | Abstract The range and azimuth information of a target can be obtained after coherent pulse accumulation of the traditional multiframe stepped‐frequency (SF) synthesis wideband echo and spectrum analysis, and high‐resolution two‐dimensional imaging of the target can be achieved. However, the accumulation of a certain number of pulses requires a long beam dwell time, which cannot meet real‐time imaging requirements for high‐speed radar moving platforms. To solve the above problems, a scanning imaging mode is proposed by combining forward‐looking imaging and scanning imaging, and a target echo signal model with the structure of scanning stepped‐frequency is constructed. The SF pulses are grouped and transmitted according to the scanning order, and the echo pulses are sorted and reorganised. After the timing compensation and range Doppler coupling compensation are completed, the target is located and projected. The proposed imaging mode can achieve high‐resolution scanning forward‐looking imaging and can basically attain an azimuth resolution of approximately 0.1° within the forward‐looking scanning range. This imaging mode has higher real‐time performance and a larger target imaging range than the traditional methods. Moreover, the simulation results showed good performance via the scanning imaging method. |
| format | Article |
| id | doaj-art-31c1e76e245949148d593d425844e4c8 |
| institution | Kabale University |
| issn | 1751-9675 1751-9683 |
| language | English |
| publishDate | 2023-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Signal Processing |
| spelling | doaj-art-31c1e76e245949148d593d425844e4c82025-08-20T03:55:01ZengWileyIET Signal Processing1751-96751751-96832023-06-01176n/an/a10.1049/sil2.12221Research on a forward‐looking scanning imaging algorithm for a high‐speed radar platformSijia Liu0Minghai Pan1College of Electronic Information Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaCollege of Electronic Information Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaAbstract The range and azimuth information of a target can be obtained after coherent pulse accumulation of the traditional multiframe stepped‐frequency (SF) synthesis wideband echo and spectrum analysis, and high‐resolution two‐dimensional imaging of the target can be achieved. However, the accumulation of a certain number of pulses requires a long beam dwell time, which cannot meet real‐time imaging requirements for high‐speed radar moving platforms. To solve the above problems, a scanning imaging mode is proposed by combining forward‐looking imaging and scanning imaging, and a target echo signal model with the structure of scanning stepped‐frequency is constructed. The SF pulses are grouped and transmitted according to the scanning order, and the echo pulses are sorted and reorganised. After the timing compensation and range Doppler coupling compensation are completed, the target is located and projected. The proposed imaging mode can achieve high‐resolution scanning forward‐looking imaging and can basically attain an azimuth resolution of approximately 0.1° within the forward‐looking scanning range. This imaging mode has higher real‐time performance and a larger target imaging range than the traditional methods. Moreover, the simulation results showed good performance via the scanning imaging method.https://doi.org/10.1049/sil2.12221radar imagingradar signal processing |
| spellingShingle | Sijia Liu Minghai Pan Research on a forward‐looking scanning imaging algorithm for a high‐speed radar platform IET Signal Processing radar imaging radar signal processing |
| title | Research on a forward‐looking scanning imaging algorithm for a high‐speed radar platform |
| title_full | Research on a forward‐looking scanning imaging algorithm for a high‐speed radar platform |
| title_fullStr | Research on a forward‐looking scanning imaging algorithm for a high‐speed radar platform |
| title_full_unstemmed | Research on a forward‐looking scanning imaging algorithm for a high‐speed radar platform |
| title_short | Research on a forward‐looking scanning imaging algorithm for a high‐speed radar platform |
| title_sort | research on a forward looking scanning imaging algorithm for a high speed radar platform |
| topic | radar imaging radar signal processing |
| url | https://doi.org/10.1049/sil2.12221 |
| work_keys_str_mv | AT sijialiu researchonaforwardlookingscanningimagingalgorithmforahighspeedradarplatform AT minghaipan researchonaforwardlookingscanningimagingalgorithmforahighspeedradarplatform |