Application of the genetic algorithm for microwave imaging of a layered dielectric object via the regular shape expansion technique
✍ Scribed by Ching-Lieh Li; Yu-Yi Cheng
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 457 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0899-9457
No coin nor oath required. For personal study only.
✦ Synopsis
A novel method combining the genetic algorithm (GA) and regular shape expansion technique is reported for electromagnetic imaging of a multilayer dielectric object of arbitrary shape. By measuring the scattered field, the shape, location, size, and permittivity of each layer of the object are retrieved quite successfully. The forward problem is solved based on the equivalent source current and the method of moments (MoM), while the inverse problem is reformulated as an optimization problem. The optimization problem is solved by the proposed method. Numerical simulation shows that good image reconstruction can be obtained for various multilayer dielectric objects as long as the noise level is ՅϪ20 dB.