Waveforms Samples – Sentinel-3 Altimetry Technical Guide

Waveform Samples

The waveform samples are computed at Level-2 processing.

LRM mode Ku and C bands: the echo is corrected for the GPRW effect
PLRM Ku and C bands: the echo is the so-called averaged echo corrected for the GPRW effect
SAR mode Ku band: the echo is corrected for Doppler range effect, phase/power burst calibration and GPWR effect

*Waveforms Samples*
PARAMETER	Waveforms Samples
NETCDF NAME	Waveform_[x1]_[x2] [x1]: 1 Hz or 20 Hz data rates [x2]: Ku-band or C-band
DESCRIPTION	Waveforms samples are computed in the Level-1 processing chain. LRM mode (Ku and C-bands): the echo waveform is corrected for the Gain Profile Range Window (GPRW) effect. SAR mode C-band: the echo waveform is the averaged echo corrected for GPRW effect. SAR mode Ku-band: the echo is corrected for Doppler range effect, phase/power burst calibration and GPRW effect.
UNITS	Count
DATA SET AVAILABILITY	Reduced: none Standard: none Enhanced: 20 Hz only
OPERATING MODE AVAILABILITY	LRM and SAR
DATA ORIGIN	1 Hz Ku/C-bands: none 20 Hz Ku-band: SRAL Level-1B product 20 Hz C-band: SRAL Level-1B product
ADDITIONAL INFORMATION	None
PARAMETERS RELATED	None
PARAMETER DETAILED DESCRIPTION	ESA's Global Land and Ocean Mission for GMES Operational Services