Unified GNSS-R formulation including coherent and incoherent scattering components
- 3 November 2016
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 4815-4818
- https://doi.org/10.1109/igarss.2016.7730256
Abstract
Global Navigation Satellite Systems Reflectometry (GNSSR) is a sort of multi-static radar using navigation signals as signals of opportunity. Due to the large number of transmitting satellites multiple scattering points over the Earth's surface can be simultaneously tracked, which provides wide-swath and improved spatio-temporal sampling over current space-borne radar altimetry missions. The lack of experimental datasets from space covering signals from multiple constellations (GPS, GLONASS, Galileo and Beidou) at dual-band (L1 and L2), and dual-polarization (Right and Left Hand Circular Polarization: RHCP and LHCP), over the ocean, land, and cryosphere remains a bottleneck to further develop these techniques. 3Cat-2 is a 6 unit (3 × 2 elementary blocks of 10 × 10 × 10 cm3) cubesat mission designed and implemented at the Universitat Politècnica de Catalunya-BarcelonaTech. It will be launched in late July 2016. During one of the two stratospheric balloon flights of the 3Cat-2 payload, the P(Y) and C/A ReflectOmeter (PYCARO), it was found that the received signal power was nearly constant with the balloon height. This revealed the presence of a strong coherent component. This work presents the derivation of a unified equation to account for both incoherent and coherent scattering contributions.Keywords
This publication has 9 references indexed in Scilit:
- First Results of a GNSS-R Experiment From a Stratospheric Balloon Over Boreal ForestsIEEE Transactions on Geoscience and Remote Sensing, 2015
- First Polarimetric GNSS-R Measurements from a Stratospheric Flight over Boreal ForestsRemote Sensing, 2015
- Multi-constellation, dual-polarization, and dual-frequency GNSS-R stratospheric balloon experiment over boreal forestsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2015
- Mitigation of Direct Signal Cross-Talk and Study of the Coherent Component in GNSS-RIEEE Geoscience and Remote Sensing Letters, 2014
- Microwave Radar and Radiometric Remote SensingPublished by University of Michigan Library ,2014
- Detection and Processing of bistatically reflected GPS signals from low Earth orbit for the purpose of ocean remote sensingIEEE Transactions on Geoscience and Remote Sensing, 2005
- First spaceborne observation of an Earth‐reflected GPS signalRadio Science, 2002
- Scattering of GPS signals from the ocean with wind remote sensing applicationIEEE Transactions on Geoscience and Remote Sensing, 2000
- Measurement of the Roughness of the Sea Surface from Photographs of the Sun’s GlitterJournal of the Optical Society of America, 1954