Joint Design of Complementary Sequence and Receiving Filter with High Doppler Tolerance for Simultaneously Polarimetric Radar
Simultaneously polarimetric radar (SPR) realizes the rapid measurement of a target’s polarimetric scattering matrix by transmitting orthogonal radar waveforms of good ambiguity function (AF) properties and receiving their echoes via two orthogonal polarimetric channels at the same time, e.g., horizo...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/15/3877 |
| _version_ | 1797586044637413376 |
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| author | Yun Chen Yunhua Zhang Dong Li Jiefang Yang |
| author_facet | Yun Chen Yunhua Zhang Dong Li Jiefang Yang |
| author_sort | Yun Chen |
| collection | DOAJ |
| description | Simultaneously polarimetric radar (SPR) realizes the rapid measurement of a target’s polarimetric scattering matrix by transmitting orthogonal radar waveforms of good ambiguity function (AF) properties and receiving their echoes via two orthogonal polarimetric channels at the same time, e.g., horizontal (H) and vertical (V) channels (antennas) sharing the same phase center. The orthogonality of the transmitted waveforms can be realized using low-correlated phase-coded sequences in the H and V channels. However, the Doppler tolerances of the waveforms composed by such coded sequences are usually quite low, and it is hard to meet the requirement of accurate measurement regarding moving targets. In this paper, a joint design approach for unimodular orthogonal complementary sequences along with the optimal receiving filter is proposed based on the majorization–minimization (MM) method via alternate iteration for obtaining simultaneously polarimetric waveforms (SPWs) of good orthogonality and of the desired AF. During design, the objective function used for minimizing the sum of the complementary integration sidelobe level (CISL) and the complementary integration isolation level (CIIL) is constructed under the mismatch constraint of signal-to-noise ratio (SNR) loss. Different SPW examples are given to show the superior performance of our design in comparison with other designs. Finally, practical experiments implemented with different SPWs are conducted to show our advantages more realistically. |
| first_indexed | 2024-03-11T00:17:41Z |
| format | Article |
| id | doaj.art-ac59284f97594c20bd27c6e869947c72 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T00:17:41Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-ac59284f97594c20bd27c6e869947c722023-11-18T23:32:04ZengMDPI AGRemote Sensing2072-42922023-08-011515387710.3390/rs15153877Joint Design of Complementary Sequence and Receiving Filter with High Doppler Tolerance for Simultaneously Polarimetric RadarYun Chen0Yunhua Zhang1Dong Li2Jiefang Yang3CAS Key Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, ChinaCAS Key Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, ChinaCAS Key Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, ChinaCAS Key Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, ChinaSimultaneously polarimetric radar (SPR) realizes the rapid measurement of a target’s polarimetric scattering matrix by transmitting orthogonal radar waveforms of good ambiguity function (AF) properties and receiving their echoes via two orthogonal polarimetric channels at the same time, e.g., horizontal (H) and vertical (V) channels (antennas) sharing the same phase center. The orthogonality of the transmitted waveforms can be realized using low-correlated phase-coded sequences in the H and V channels. However, the Doppler tolerances of the waveforms composed by such coded sequences are usually quite low, and it is hard to meet the requirement of accurate measurement regarding moving targets. In this paper, a joint design approach for unimodular orthogonal complementary sequences along with the optimal receiving filter is proposed based on the majorization–minimization (MM) method via alternate iteration for obtaining simultaneously polarimetric waveforms (SPWs) of good orthogonality and of the desired AF. During design, the objective function used for minimizing the sum of the complementary integration sidelobe level (CISL) and the complementary integration isolation level (CIIL) is constructed under the mismatch constraint of signal-to-noise ratio (SNR) loss. Different SPW examples are given to show the superior performance of our design in comparison with other designs. Finally, practical experiments implemented with different SPWs are conducted to show our advantages more realistically.https://www.mdpi.com/2072-4292/15/15/3877simultaneously polarimetric radar (SPR)orthogonal waveformscomplementary sequencesDoppler tolerancemajorization–minimization (MM)mismatch filter |
| spellingShingle | Yun Chen Yunhua Zhang Dong Li Jiefang Yang Joint Design of Complementary Sequence and Receiving Filter with High Doppler Tolerance for Simultaneously Polarimetric Radar Remote Sensing simultaneously polarimetric radar (SPR) orthogonal waveforms complementary sequences Doppler tolerance majorization–minimization (MM) mismatch filter |
| title | Joint Design of Complementary Sequence and Receiving Filter with High Doppler Tolerance for Simultaneously Polarimetric Radar |
| title_full | Joint Design of Complementary Sequence and Receiving Filter with High Doppler Tolerance for Simultaneously Polarimetric Radar |
| title_fullStr | Joint Design of Complementary Sequence and Receiving Filter with High Doppler Tolerance for Simultaneously Polarimetric Radar |
| title_full_unstemmed | Joint Design of Complementary Sequence and Receiving Filter with High Doppler Tolerance for Simultaneously Polarimetric Radar |
| title_short | Joint Design of Complementary Sequence and Receiving Filter with High Doppler Tolerance for Simultaneously Polarimetric Radar |
| title_sort | joint design of complementary sequence and receiving filter with high doppler tolerance for simultaneously polarimetric radar |
| topic | simultaneously polarimetric radar (SPR) orthogonal waveforms complementary sequences Doppler tolerance majorization–minimization (MM) mismatch filter |
| url | https://www.mdpi.com/2072-4292/15/15/3877 |
| work_keys_str_mv | AT yunchen jointdesignofcomplementarysequenceandreceivingfilterwithhighdopplertoleranceforsimultaneouslypolarimetricradar AT yunhuazhang jointdesignofcomplementarysequenceandreceivingfilterwithhighdopplertoleranceforsimultaneouslypolarimetricradar AT dongli jointdesignofcomplementarysequenceandreceivingfilterwithhighdopplertoleranceforsimultaneouslypolarimetricradar AT jiefangyang jointdesignofcomplementarysequenceandreceivingfilterwithhighdopplertoleranceforsimultaneouslypolarimetricradar |