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[IEEE IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium - Valencia, Spain (2018.7.22-2018.7.27)] IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium - A GPS-Reflectometry Simulator for Target Detection Over Oceans
摘要： The development and implementation of a GPS-Reflectometry (GPS-R) simulator for the ocean target detection application is proposed, with the objective of assessing and characterizing the capability of GPS-R as a new method for sea surface target detection. The novel idea is to use a backscattering configuration to enhance the electromagnetic return from the target compared to the surrounding ocean. Hence the backscattering simulator simulates images of GPS echoes from one or more targets embedded in an ocean clutter, and its outputs will be analysed as a function of hardware parameters, geometry, and signal processing approaches to determine the target detectability. Some preliminary results related to the backscattering simulations from both ocean and target will be presented.
关键词： target detection,GPS-Reflectometry,backscattering
更新于2025-09-23 15:21:21
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[IEEE IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium - Valencia, Spain (2018.7.22-2018.7.27)] IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium - Analysis of CYGNSS Data for Soil Moisture Applications
摘要： An analysis of CYGNSS data is presented, with the objective of assessing the potentials of these data for land applications. The GPS-Reflections over land acquired by the CYGNSS observatories are exploited to detect properties of the land soil moisture. A land reflectivity observable, derived from CYGNSS Delay/Doppler Maps, is computed using a calibration approach suitable for land reflections. The sensitivity of the reflectivity observable to the soil moisture parameter is investigated through a comparison with soil moisture data from the SMAP satellite. Some preliminary results on the correlation between the CYGNSS reflectivity and the SMAP soil moisture are presented. This work is being conducted within the framework of the European Space Agency Project “Potential of Spaceborne GNSS-R for Land Applications”.
关键词： Delay-Doppler Map,soil moisture,GPS-Reflectometry
更新于2025-09-10 09:29:36