Receiver comprising an arrangement for estimating a frequency de

Details Receiver comprising an arrangement for estimating a frequency de Receiver comprising an arrangement for estimating a frequency de

1991-04-25

1995-07-18

Chin, Stephen

Pulse or digital communications

Receivers

Automatic frequency control

375346, 455255, H04L 2706

Patent

active

054348897

ABSTRACT:
In a base band conversion receiver, frequency deviation in the base band signal due to tolerances and drift of the transmitter frequency and of the mixing frequencies in the receiver is compensated by an automatic control. The signal converted to the base band is applied to a channel estimator which forms a channel estimation vector as an estimate of the instantaneous channel impulse responses in a complex bag band representation. A frequency deviation estimator evaluates the changes in time these channel estimation vectors.

REFERENCES:
patent: 4887050 (1989-12-01), Borth et al.
patent: 4947409 (1990-08-01), Raith et al.

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