Calibration aspects of the software PARIS interferometric receiver

The Software PARIS Interferometric Receiver (SPIR) was conceived as a multiple beam-forming GNSS-Reflectometry receiver capable of implementing different signal processing strategies (clean-replica, interferometric, etc.) in order to demonstrate the synoptic capabilities for sea-surface altimetry us...

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Bibliographic Details
Main Authors: Ribo, Serni, Fabra, F., Cardellach, E., Li, W., Rius, A.
Format: Conference Proceeding
Language:English
Subjects:
Antenna arrays
bi-static radar
Calibration
Clocks
Frequency measurement
GNSS-R
instrumental delay
Instruments
Receivers
Sea measurements
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Summary:The Software PARIS Interferometric Receiver (SPIR) was conceived as a multiple beam-forming GNSS-Reflectometry receiver capable of implementing different signal processing strategies (clean-replica, interferometric, etc.) in order to demonstrate the synoptic capabilities for sea-surface altimetry using the interferometric GNSS-R technique. The instrument has been designed as a 16-channel very-high speed (320 MB/s) hardware recording receiver followed by a software post-processor, implementing the beam-forming and signal processing. The presence of 16 channels together with the beam-forming capabilities requires to characterize the quantization offsets, instrument time-keeping and relative instrumental delays between the different channels in order to have a well-functioning instrument. In this paper we present several calibration aspects of SPIR.
ISSN:2153-7003
DOI:10.1109/IGARSS.2017.8127905