Dual Frequency Polarized Scatterometer for global snow observation

Dual Frequency Polarized Scatterometer (DFPSCAT) is one of the three payloads onboard the satellite of Water Cycle Observation Mission (WCOM). DFPSCAT is an X/Ku band rotating pencil beam scatterometer with 2-5 km resolution and 1000km swath for mapping of snow water equivalent (SWE) and freeze-thaw process [1]. DFPSCAT achieves fine resolution by linear frequency modulation pulse compression along the elevation direction, and by unfocused synthetic aperture processing (a technique where the Doppler effect is exploited to synthesize a longer aperture to achieve an improved resolution), as well as super-resolution reconstruction by oversampling in the direction of the azimuth.

[1]  Xiaolong Dong,et al.  Adaptive regularization method for forward looking Azimuth super-resolution of a Dual-Frequency Polarized Scatterometer , 2015, 2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS).

[2]  Gang Wang,et al.  An unfocused SAR design to improve azimuth resolution of dual-frequency full-polarized scatterometer , 2015, 2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS).

[3]  Hao Liu,et al.  WCOM: The science scenario and objectives of a global water cycle observation mission , 2014, 2014 IEEE Geoscience and Remote Sensing Symposium.