摘要
依据电磁逆散射理论，由频域的反射系数或时域的反射脉冲重建分层均匀介质折射率廓线。采用非线性重整化技术对利卡提方程进行化简，并由此导出反射脉冲与折射率廓线分布函数之间的关系。数值模拟结果表明，用非线性重整化技术重建折射率廓线具有物理图象清晰、精度高、稳定性好、抗噪声干扰及简便快捷的优点。
The purpose of the paper is to reconstruct the refractive index profile of layeredmedium from the electromagnet ic reflecte signals. Nonliner renormalization is performed ofRiccati equation,which is made intergratable and with which the relation between the refractiveindex and the reflection signals in time domain is derived.Medels of different forms and scalesare used to check the procedure.Numerical results show that this nonlinear renormalizationtechnique is a stable and simple procedure of high accuracy.
出处
《南京气象学院学报》
CSCD
1995年第2期179-186,共8页
Journal of Nanjing Institute of Meteorology
关键词
电磁逆散射
折射率
廓线
介质
电磁波传播
electromagnetic inverse scattering,reconstruction of the refractive index profile,layered uniform medium
