Radar Coherent Detection for Maneuvering Target Based on Product-Scaled Integrated Cubic Phase Function
This paper considers the long-time coherent detection problem for maneuvering targets with jerk motion. A novel method based on product-scaled integrated cubic phase function (PSICPF) is proposed. The main strategy of PSICPF is to estimate target’s motion parameters along the slow time for each rang...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2019/8691903 |
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| _version_ | 1849414468980703232 |
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| author | Jinyang Chen Ke Jin Shangjiang Yu Tao Lai Yongjun Zhao |
| author_facet | Jinyang Chen Ke Jin Shangjiang Yu Tao Lai Yongjun Zhao |
| author_sort | Jinyang Chen |
| collection | DOAJ |
| description | This paper considers the long-time coherent detection problem for maneuvering targets with jerk motion. A novel method based on product-scaled integrated cubic phase function (PSICPF) is proposed. The main strategy of PSICPF is to estimate target’s motion parameters along the slow time for each range frequency cell. In order to eliminate the coupling terms between range frequency and slow time, the scaled nonuniform fast Fourier transform (SNUFFT) is newly defined in the integrated cubic phase function (ICPF). Then, the product operation is employed to coherently synthesize the estimation results, improve the antinoise performance, and suppress the cross terms. Finally, coherent integration is achieved via keystone transform (KT) and fold factor searching. Analysis demonstrates that the SNUFFT has the same computational complexity with nonuniform fast Fourier transform (NUFFT), and thus the PSICPF could be efficiently implemented via complex multiplications, the fast Fourier transform (FFT), and NUFFT. Detailed comparisons with other representative methods in computational cost, motion parameter estimation performance, and detection ability indicate that the PSICPF could achieve a good balance between the computational cost and detection ability. Simulations and real data processing results are presented to verify the effectiveness of the proposed method. |
| format | Article |
| id | doaj-art-6dd0d354e4aa491183ee1bdb2050177d |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-6dd0d354e4aa491183ee1bdb2050177d2025-08-20T03:33:50ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772019-01-01201910.1155/2019/86919038691903Radar Coherent Detection for Maneuvering Target Based on Product-Scaled Integrated Cubic Phase FunctionJinyang Chen0Ke Jin1Shangjiang Yu2Tao Lai3Yongjun Zhao4PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, ChinaPLA Strategic Support Force Information Engineering University, Zhengzhou 450001, ChinaInstitute of Defense Engineering, Academy of Military Sciences, PLA, Luoyang 471000, ChinaSchool of Electronics and Communication Engineering, Sun Yat-Sen University, Guangzhou 510000, ChinaPLA Strategic Support Force Information Engineering University, Zhengzhou 450001, ChinaThis paper considers the long-time coherent detection problem for maneuvering targets with jerk motion. A novel method based on product-scaled integrated cubic phase function (PSICPF) is proposed. The main strategy of PSICPF is to estimate target’s motion parameters along the slow time for each range frequency cell. In order to eliminate the coupling terms between range frequency and slow time, the scaled nonuniform fast Fourier transform (SNUFFT) is newly defined in the integrated cubic phase function (ICPF). Then, the product operation is employed to coherently synthesize the estimation results, improve the antinoise performance, and suppress the cross terms. Finally, coherent integration is achieved via keystone transform (KT) and fold factor searching. Analysis demonstrates that the SNUFFT has the same computational complexity with nonuniform fast Fourier transform (NUFFT), and thus the PSICPF could be efficiently implemented via complex multiplications, the fast Fourier transform (FFT), and NUFFT. Detailed comparisons with other representative methods in computational cost, motion parameter estimation performance, and detection ability indicate that the PSICPF could achieve a good balance between the computational cost and detection ability. Simulations and real data processing results are presented to verify the effectiveness of the proposed method.http://dx.doi.org/10.1155/2019/8691903 |
| spellingShingle | Jinyang Chen Ke Jin Shangjiang Yu Tao Lai Yongjun Zhao Radar Coherent Detection for Maneuvering Target Based on Product-Scaled Integrated Cubic Phase Function International Journal of Antennas and Propagation |
| title | Radar Coherent Detection for Maneuvering Target Based on Product-Scaled Integrated Cubic Phase Function |
| title_full | Radar Coherent Detection for Maneuvering Target Based on Product-Scaled Integrated Cubic Phase Function |
| title_fullStr | Radar Coherent Detection for Maneuvering Target Based on Product-Scaled Integrated Cubic Phase Function |
| title_full_unstemmed | Radar Coherent Detection for Maneuvering Target Based on Product-Scaled Integrated Cubic Phase Function |
| title_short | Radar Coherent Detection for Maneuvering Target Based on Product-Scaled Integrated Cubic Phase Function |
| title_sort | radar coherent detection for maneuvering target based on product scaled integrated cubic phase function |
| url | http://dx.doi.org/10.1155/2019/8691903 |
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