文件名称:EGPRS-Test-Meeting-theChallenge-of-8PSK-Modulatio
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This application note starts with a review of the 8PSK modulation format.
The reasons for adopting 8PSK with 3π/8 rotation in the EDGE system
are presented. The relationship between GMSK and 8PSK is reviewed.
The challenges of 8PSK power measurements are then considered. The
dependence of burst power on modulating data is discussed and quantified.
In this context, the trade-off between burst power measurement accuracy
and speed is studied. The estimated carrier power concept is introduced
as a technique for achieving the required measurement accuracy without
having to compromise measurement speed.
The reasons for adopting 8PSK with 3π/8 rotation in the EDGE system
are presented. The relationship between GMSK and 8PSK is reviewed.
The challenges of 8PSK power measurements are then considered. The
dependence of burst power on modulating data is discussed and quantified.
In this context, the trade-off between burst power measurement accuracy
and speed is studied. The estimated carrier power concept is introduced
as a technique for achieving the required measurement accuracy without
having to compromise measurement speed.
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EGPRS Test Meeting theChallenge of 8PSK Modulation.pdf