HopeRF feedback

JDH services jaydeeaich at gmail.com
Fri Jun 25 14:06:29 EDT 2010


On 6/24/10, Werner Almesberger <werner at openmoko.org> wrote:
> JDH services wrote:
>  > On 6/24/10, Werner Almesberger <werner at openmoko.org> wrote:
>
> >>  MSK is a special configuration of FSK:
>  >
>  > "MSK can also be viewed as a continuous phase frequency shift keyed
>  > (CPFSK) signal with a frequency separation of one-half the bit rate."
>  > from  http://en.wikipedia.org/wiki/Minimum-shift_keying
>
>
> Yes, MSK is a CPFSK is an FSK [1, 2] is an FM. Silabs don't mention
>  explicitly that their FSK has continuous phase. However, their use
>  of a VCO (as opposed to a pair of oscillators as shown in [3])
>  strongly suggests this. For (GMSK is a) GFSK, only continuous phase
>  would make sense anyway.

isn't the hard part of gmsk the demodulation?


Sincerely,
Panthera Tigris Altaica




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