张波, 张红, 王子玮, 王超. 电磁散射模型应用于单景高分辨率SAR影像建筑物高度反演的解算方法[J]. 武汉大学学报 ( 信息科学版), 2012, 37(12): 1460-1463.
引用本文: 张波, 张红, 王子玮, 王超. 电磁散射模型应用于单景高分辨率SAR影像建筑物高度反演的解算方法[J]. 武汉大学学报 ( 信息科学版), 2012, 37(12): 1460-1463.
ZHANG Bo, ZHANG Hong, WANG Ziwei, WANG Chao. Electromagnetic Model Used for Building Height Retrieval by Single High Resolution SAR Image[J]. Geomatics and Information Science of Wuhan University, 2012, 37(12): 1460-1463.
Citation: ZHANG Bo, ZHANG Hong, WANG Ziwei, WANG Chao. Electromagnetic Model Used for Building Height Retrieval by Single High Resolution SAR Image[J]. Geomatics and Information Science of Wuhan University, 2012, 37(12): 1460-1463.

电磁散射模型应用于单景高分辨率SAR影像建筑物高度反演的解算方法

Electromagnetic Model Used for Building Height Retrieval by Single High Resolution SAR Image

  • 摘要: 首先,测量建筑物叠掩量,反演出建筑物高度初值;然后,在相邻建筑物下垫面粗糙度相关的假设下,对重组后的电磁散射模型进行基于拟模拟退火的参数解算,实现了模型中未知参数的求解以及建筑物高度的反演。将此方法应用于真实Radarsat-2SAR场景中3座建筑物高度的反演,取得了反演高度相对误差均小于10%的结果。

     

    Abstract: In order to expand the applicable scope of electromagnetic model,a new approach was proposed after recombining unknown parameters about building and ground in this model.The new calculation process was consisted of two steps: initial building height firstly estimated by layover measurement of building roof,and then building height refined by electromagnetic model which was resolved in the system of simulated annealing.To validate this method,heights of three buildings were retrieved from a Radarsat-2 image with 3-meters resolution.The results show that the relative error of building height retrieval is less than 10% in the experiment data.

     

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