In-orbit onboard wind vector rapid reterival using polarimeteric microwave radiometer

The wind vector inversion from space-borne microwave radiometer is mainly done on the ground, and need to transfer large amount of data block to the ground when crossing ground stations, which delays the real-time inversion and usage of satellite data. We propose a rapid wind vector retrieval algorithm for the onboard processing of microwave polarimetric radiometer brightness temperature (TB). The rapid wind vector retrieval algorithm is validated using WindSat polarimetric TB. With this rapid onboard inversion algorithm, only the inversion result will be transfer down to ground stations in order to reduce onboard storage space and amount of downlink data transmission, and to improve real-time inversion.