HIGH DATA RATE RECEIVER
HDR-4G+ USER’S MANUAL
Ref. DTU 100782
Is.Rev 3.5
Date: June 1, 2021
© Safran Data Systems – IMP000074 e14r1
This document is the property of Safran Data Systems.
It cannot be duplicated or distributed without expressed written consent.
C. In the GUI, in the Vector pane:
Figure 37: Standard Es/N0 estimate in the vector pane
Data-aided Es/N0 estimation in SCCC and DVB-S2 3.3.11.3
SDSY worked on an improved version of the estimator, specifically for the SCCC and DVB-S2
modulation schemes. These evolved modulation scheme are based on symbol-framing, with robust
headers. In both standards, the headers are Pi/2 BPSK-modulated, and are guaranteed to be error-free
well-below the threshold of the lowest ACM.
The developed algorithm recovers and decodes these robust headers to estimate Es/N0. This provided
a better estimation of Es/N0 for low values, as seen on next figure.
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