The Comparison of Performance between Contrast Source Inversion and Its Related Algorithms and Several Improved Methods
The contrast source inversion (CSI) is an effective method for solving microwave imaging problems which is widely utilized. The core of the CSI is to change the conventional inverse scattering problem into an optimization problem. The two items in the objective function describe the state error and...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2021/5510010 |
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| author | Meng Wang Guizhen Lu |
| author_facet | Meng Wang Guizhen Lu |
| author_sort | Meng Wang |
| collection | DOAJ |
| description | The contrast source inversion (CSI) is an effective method for solving microwave imaging problems which is widely utilized. The core of the CSI is to change the conventional inverse scattering problem into an optimization problem. The two items in the objective function describe the state error and data error, respectively. As it is all known, there is almost no complete performance comparison based on Fresnel data for the CSI and its related improved algorithms. In addition, the performance of the algorithm under different weights was not analyzed before and the convergence speed of original CSI is slow. Firstly, this paper compares the performance of traditional CSI and its improved algorithms from three aspects of qualitative imaging effect, convergence speed, and objective function value based on Fresnel data. Secondly, the influence of the state error and the data error under different weights on the convergence rate and the objective function value are studied. For the limitation of a slower convergence rate, the CSI with weights (W-CSI), the CSI with dynamic reduction factor (CSI-DRF), and its related algorithms, which can get better convergence rate compared with their relative original algorithms, are proposed. Eventually, the future research work is prospected. |
| format | Article |
| id | doaj-art-d9fd37aaafbe4c3b8447930b75475495 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-d9fd37aaafbe4c3b8447930b754754952025-02-03T01:27:20ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772021-01-01202110.1155/2021/55100105510010The Comparison of Performance between Contrast Source Inversion and Its Related Algorithms and Several Improved MethodsMeng Wang0Guizhen Lu1College of Information and Communication Engineering, Communication University of China, Beijing 100024, ChinaCollege of Information and Communication Engineering, Communication University of China, Beijing 100024, ChinaThe contrast source inversion (CSI) is an effective method for solving microwave imaging problems which is widely utilized. The core of the CSI is to change the conventional inverse scattering problem into an optimization problem. The two items in the objective function describe the state error and data error, respectively. As it is all known, there is almost no complete performance comparison based on Fresnel data for the CSI and its related improved algorithms. In addition, the performance of the algorithm under different weights was not analyzed before and the convergence speed of original CSI is slow. Firstly, this paper compares the performance of traditional CSI and its improved algorithms from three aspects of qualitative imaging effect, convergence speed, and objective function value based on Fresnel data. Secondly, the influence of the state error and the data error under different weights on the convergence rate and the objective function value are studied. For the limitation of a slower convergence rate, the CSI with weights (W-CSI), the CSI with dynamic reduction factor (CSI-DRF), and its related algorithms, which can get better convergence rate compared with their relative original algorithms, are proposed. Eventually, the future research work is prospected.http://dx.doi.org/10.1155/2021/5510010 |
| spellingShingle | Meng Wang Guizhen Lu The Comparison of Performance between Contrast Source Inversion and Its Related Algorithms and Several Improved Methods International Journal of Antennas and Propagation |
| title | The Comparison of Performance between Contrast Source Inversion and Its Related Algorithms and Several Improved Methods |
| title_full | The Comparison of Performance between Contrast Source Inversion and Its Related Algorithms and Several Improved Methods |
| title_fullStr | The Comparison of Performance between Contrast Source Inversion and Its Related Algorithms and Several Improved Methods |
| title_full_unstemmed | The Comparison of Performance between Contrast Source Inversion and Its Related Algorithms and Several Improved Methods |
| title_short | The Comparison of Performance between Contrast Source Inversion and Its Related Algorithms and Several Improved Methods |
| title_sort | comparison of performance between contrast source inversion and its related algorithms and several improved methods |
| url | http://dx.doi.org/10.1155/2021/5510010 |
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