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Remote Sensing
Volume 15
Issue 7
10.3390/rs15071884
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Article

Near-Field IPO for Analysis of EM Scattering from Multiple Hybrid Dielectric and Conductor Target and High Resolution Range Profiles

by
Qingkuan Wang
1,†,
Yijin Wang
1,*,†,
Chuangming Tong
1,
Zhaolong Wang
1,
Ximin Li
2 and
Tong Wang
1
1
Air Defense and Antimissile School, Air Force Engineering University, Xi’an 710051, China
2
National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Remote Sens. 2023, 15(7), 1884; https://doi.org/10.3390/rs15071884
Submission received: 27 February 2023 / Revised: 29 March 2023 / Accepted: 29 March 2023 / Published: 31 March 2023
(This article belongs to the Special Issue Advances in Radar, Optical, Hyperspectral, Infrared, and Sonar Technology: Data Acquisition, Processing, and Applications)
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Abstract

Aiming at improving the accuracy and efficiency of scattering information from multiple targets in near-field regions, this paper proposes a near-field iterative physical optics (IPO) method based on a modified near-field Green’s function for the composite electromagnetic scattering analysis of multiple hybrid dielectric and conductor targets. According to the electric field and magnetic field integral equation, the electric and magnetic current were updated utilizing the Jacobi iteration method. Then, by introducing an expansion center lying in the neighborhood of the source point, Green’s function was modified for near-field scattering between multiple hybrid dielectric and conductor targets. To accelerate the implementation of the procedure, the multilevel fast multipole method, the fast far-field approximation, and parallel multicore programming were introduced. Numerical results indicate that there is good agreement between the results calculated by the near-field IPO method and MLFMM solver in commercial software FEKO while significantly reducing the computational burden. To fully exploit the scattering information, the high resolution range profiles (HRRP) of different targets under different conditions were analyzed, which can be further applied for automatic target detection and recognition.
Keywords: composite electromagnetic scattering; hybrid dielectric and conductor target; multiple targets; near-field IPO; high resolution range profiles composite electromagnetic scattering; hybrid dielectric and conductor target; multiple targets; near-field IPO; high resolution range profiles

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MDPI and ACS Style

Wang, Q.; Wang, Y.; Tong, C.; Wang, Z.; Li, X.; Wang, T. Near-Field IPO for Analysis of EM Scattering from Multiple Hybrid Dielectric and Conductor Target and High Resolution Range Profiles. Remote Sens. 2023, 15, 1884. https://doi.org/10.3390/rs15071884

AMA Style

Wang Q, Wang Y, Tong C, Wang Z, Li X, Wang T. Near-Field IPO for Analysis of EM Scattering from Multiple Hybrid Dielectric and Conductor Target and High Resolution Range Profiles. Remote Sensing. 2023; 15(7):1884. https://doi.org/10.3390/rs15071884

Chicago/Turabian Style

Wang, Qingkuan, Yijin Wang, Chuangming Tong, Zhaolong Wang, Ximin Li, and Tong Wang. 2023. "Near-Field IPO for Analysis of EM Scattering from Multiple Hybrid Dielectric and Conductor Target and High Resolution Range Profiles" Remote Sensing 15, no. 7: 1884. https://doi.org/10.3390/rs15071884

APA Style

Wang, Q., Wang, Y., Tong, C., Wang, Z., Li, X., & Wang, T. (2023). Near-Field IPO for Analysis of EM Scattering from Multiple Hybrid Dielectric and Conductor Target and High Resolution Range Profiles. Remote Sensing, 15(7), 1884. https://doi.org/10.3390/rs15071884

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