The compensation of the Doppler frequency error is important
to accurately estimate the sea height in spaceborne GNSSR
altimetry. This work presents the impact of the residual
Doppler error on the altimetric performance. The GNSS-R altimetric
observables (waveforms) are simulated with various
observation parameters, and the degradation is analyzed vs.
the Doppler errors. It is shown that the Doppler error causes a
bias, a decrease of the waveform value, and consequently the
altimetric performanc...
The compensation of the Doppler frequency error is important
to accurately estimate the sea height in spaceborne GNSSR
altimetry. This work presents the impact of the residual
Doppler error on the altimetric performance. The GNSS-R altimetric
observables (waveforms) are simulated with various
observation parameters, and the degradation is analyzed vs.
the Doppler errors. It is shown that the Doppler error causes a
bias, a decrease of the waveform value, and consequently the
altimetric performance degradation in accuracy and precision.
Citation
Hyuk, P.; Camps, A.; Valencia, E. Impact of doppler frequency compensation errors on spaceborne GNSS-R altimetry. A: IEEE International Geoscience and Remote Sensing Symposium. "IGARSS 2012: International Geoscience and Remote Sensing Symposium". Munich: Institute of Electrical and Electronics Engineers (IEEE), 2012, p. 2661-2664.
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