Frequency error measuring apparatus and radio apparatus

Details Frequency error measuring apparatus and radio apparatus Frequency error measuring apparatus and radio apparatus

1997-02-04

2000-04-18

Bocure, Tesfaldet

Pulse or digital communications

Receivers

Automatic frequency control

375364, 370514, H04L 2706, H04L 706

Patent

active

060524189

ABSTRACT:
In a radio apparatus of such as digital cellular which transmit and receive audio signals upon coded, the frequency error can be detected easily and certainly even in the environment of high noise level. The frequency error .theta..sub.e is detected according to the detection result of the complex correlation value between the synchronizing signal and the standard signal.

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