Pulse or digital communications – Receivers – Angle modulation
Patent
1995-04-07
1996-09-17
Chin, Stephen
Pulse or digital communications
Receivers
Angle modulation
375274, 375336, 375344, 329300, 329318, 348536, 331 34, H04L 2714
Patent
active
055576435
ABSTRACT:
An AFC system and method of detecting and compensating frequency drift in the carrier frequency of a Gaussian filtered Minimum Shift Keying (GMSK) signal by demodulated frequency compensated samples of the received signal and calculating a frequency compensation angle based upon the demodulated frequency compensation samples. The compensation angle is fed back to the frequency compensator and error detector and used to calculate the error signal.
REFERENCES:
patent: 4887050 (1989-12-01), Borth et al.
patent: 5131008 (1992-07-01), Kazecki et al.
patent: 5341402 (1994-08-01), Matsushita et al.
patent: 5412693 (1995-05-01), Bolla et al.
patent: 5440268 (1995-08-01), Taga et al.
Cao Zhendong
Kim In-Kyung
Chin Stephen
Denson-Low Wanda K.
Hughes Electronics
Le Amanda T.
Lindeen III Gordon R.
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