A Novel Method of Ground Target Positioning based on Heterologous Image Registration

In this paper, we propose a target high-precision positioning method based on heterogeneous image registration, including target longitude, latitude and altitude. The longitude and latitude are obtained by registering video SAR images with optical map, and the positioning information on the optical map is precisely known. Based on the registration of video SAR images and optical video images, the target height can be solved according to the projection direction difference of the height target on the two types of images, and the target altitude is calculated by adding the ground altitude. The video SAR and optical video images come from the integrated sensor, and the high frame rate imaging of video SAR can simultaneously satisfy the positioning of moving and stationary targets. Finally, the positioning results of this method is verified by measured data.