A Novel Probability Model for Suppressing Multipath Ghosts in GPR and TWI Imaging: A Numerical Study
A novel concept for suppressing the problem of multipath ghosts in Ground Penetrating Radar (GPR) and Through-Wall Imaging (TWI) is presented. Ghosts (i.e., false targets) mainly arise from the use of the Born or single-scattering approximations that lead to linearized imaging algorithms; however, t...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
China Science Publishing & Media Ltd. (CSPM)
2015-10-01
|
| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | http://radars.ie.ac.cn/CN/html/R15066.htm |
| _version_ | 1827613573509021696 |
|---|---|
| author | Tan Yun-hua Wang Li-bo Li Lian-lin |
| author_facet | Tan Yun-hua Wang Li-bo Li Lian-lin |
| author_sort | Tan Yun-hua |
| collection | DOAJ |
| description | A novel concept for suppressing the problem of multipath ghosts in Ground Penetrating Radar (GPR) and Through-Wall Imaging (TWI) is presented. Ghosts (i.e., false targets) mainly arise from the use of the Born or single-scattering approximations that lead to linearized imaging algorithms; however, these approximations neglect the effect of multiple scattering (or multipath) between the electromagnetic wavefield and the object under investigation. In contrast to existing methods of suppressing multipath ghosts, the proposed method models for the first time the reflectivity of the probed objects as a probability function up to a normalized factor and introduces the concept of random subaperture by randomly picking up measurement locations from the entire aperture. Thus, the final radar image is a joint probability distribution that corresponds to radar images derived from multiple random subapertures. Finally, numerical experiments are used to demonstrate the performance of the proposed methodology in GPR and TWI imaging. |
| first_indexed | 2024-03-09T08:41:42Z |
| format | Article |
| id | doaj.art-35461eb9cbf445ca8decf34bd99e2dae |
| institution | Directory Open Access Journal |
| issn | 2095-283X 2095-283X |
| language | English |
| last_indexed | 2024-03-09T08:41:42Z |
| publishDate | 2015-10-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-35461eb9cbf445ca8decf34bd99e2dae2023-12-02T16:34:43ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2095-283X2015-10-014550951710.12000/JR15066A Novel Probability Model for Suppressing Multipath Ghosts in GPR and TWI Imaging: A Numerical StudyTan Yun-hua0Wang Li-bo1Li Lian-lin2School of Electronics Engineering and Computer Science, Peking UniversitySchool of Electronics Engineering and Computer Science, Peking UniversitySchool of Electronics Engineering and Computer Science, Peking UniversityA novel concept for suppressing the problem of multipath ghosts in Ground Penetrating Radar (GPR) and Through-Wall Imaging (TWI) is presented. Ghosts (i.e., false targets) mainly arise from the use of the Born or single-scattering approximations that lead to linearized imaging algorithms; however, these approximations neglect the effect of multiple scattering (or multipath) between the electromagnetic wavefield and the object under investigation. In contrast to existing methods of suppressing multipath ghosts, the proposed method models for the first time the reflectivity of the probed objects as a probability function up to a normalized factor and introduces the concept of random subaperture by randomly picking up measurement locations from the entire aperture. Thus, the final radar image is a joint probability distribution that corresponds to radar images derived from multiple random subapertures. Finally, numerical experiments are used to demonstrate the performance of the proposed methodology in GPR and TWI imaging.http://radars.ie.ac.cn/CN/html/R15066.htmRadar imagingGround Penetrating Radar (GPR)Through-Wall Imaging (TWI)Multipath ghostsRandom sub-aperture |
| spellingShingle | Tan Yun-hua Wang Li-bo Li Lian-lin A Novel Probability Model for Suppressing Multipath Ghosts in GPR and TWI Imaging: A Numerical Study Leida xuebao Radar imaging Ground Penetrating Radar (GPR) Through-Wall Imaging (TWI) Multipath ghosts Random sub-aperture |
| title | A Novel Probability Model for Suppressing Multipath Ghosts in GPR and TWI Imaging: A Numerical Study |
| title_full | A Novel Probability Model for Suppressing Multipath Ghosts in GPR and TWI Imaging: A Numerical Study |
| title_fullStr | A Novel Probability Model for Suppressing Multipath Ghosts in GPR and TWI Imaging: A Numerical Study |
| title_full_unstemmed | A Novel Probability Model for Suppressing Multipath Ghosts in GPR and TWI Imaging: A Numerical Study |
| title_short | A Novel Probability Model for Suppressing Multipath Ghosts in GPR and TWI Imaging: A Numerical Study |
| title_sort | novel probability model for suppressing multipath ghosts in gpr and twi imaging a numerical study |
| topic | Radar imaging Ground Penetrating Radar (GPR) Through-Wall Imaging (TWI) Multipath ghosts Random sub-aperture |
| url | http://radars.ie.ac.cn/CN/html/R15066.htm |
| work_keys_str_mv | AT tanyunhua anovelprobabilitymodelforsuppressingmultipathghostsingprandtwiimaginganumericalstudy AT wanglibo anovelprobabilitymodelforsuppressingmultipathghostsingprandtwiimaginganumericalstudy AT lilianlin anovelprobabilitymodelforsuppressingmultipathghostsingprandtwiimaginganumericalstudy AT tanyunhua novelprobabilitymodelforsuppressingmultipathghostsingprandtwiimaginganumericalstudy AT wanglibo novelprobabilitymodelforsuppressingmultipathghostsingprandtwiimaginganumericalstudy AT lilianlin novelprobabilitymodelforsuppressingmultipathghostsingprandtwiimaginganumericalstudy |