Technical Breakdown

DQ 1 maps are high-resolution radar maps used in geodetic surveying. They provide precise elevation measurements, with sub-centimeter accuracy. DQ 1 maps employ interferometric synthetic aperture radar (InSAR) technology, which utilizes two radar images to generate topographic data. The phase difference between the two images enables the determination of surface elevation. DQ 1 maps are valuable tools for terrain mapping, land subsidence monitoring, and other applications requiring detailed elevation information.