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Iowa State University/The University of Michigan Direct Sampling Digital Radiometer

In this study, a polarimetric-capable, L-band dual polarization radiometer is introduced. The radiometer has been built for Iowa State University (ISU) by The University of Michigan. It is a ‘Direct Sampling Digital Radiometer’ (DSDR), in which most of the operations are performed digitally and mixer stages are eliminated. The system is to be used for soil moisture retrieval studies, especially for the retrieval of soil moisture under canopies.