costas will do the job as long as your measurement bandwidth includes
twice the expected frequency offset, see http://jmfriedt.free.fr/efts_gps.pdf
slide 13.
JM
I am planning to track a signal from a LEO Satellite which transmits
approx. 100 kbps BPSK.
I wonder which blocks should I use since the carrier offset ranges are:
around -50 kHz (beginning of the pass)
around +50 kHz (at the endof the pass)
Possible blocks are:
PLL Carrier Tracking
Costas Loop (using the frequency output port to get the carrier freq. error)
Any other suggestions- Examples?
Please don't offer manually shifting the frequency.(Using Gpredict)
--
JM Friedt, FEMTO-ST Time & Frequency/SENSeOR, 26 rue de l'Epitaphe,
25000 Besancon, France
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