Carrier slip compensation method for coherent detection

Details Carrier slip compensation method for coherent detection Carrier slip compensation method for coherent detection

1996-12-30

1999-11-30

Horabik, Michael

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

370517, 370518, 370204, 370206, H04J 306

Patent

active

059955201

ABSTRACT:
In the communication system using the binary phase shift keying (BPSK) modulation method, an erroneous data that might be caused by a carrier slip of carrier wave generated during coherent detection can be compensated. The modulation unit of the transmitter transmits identical data at differentiated timing through BPSK modulation, and the coherent detector circuit of the demodulation unit of the receiver detects waves upon receiving signals. The compensating circuit makes time differences in transmitted data equal and compares them to detect mismatch in order to compensate carrier slip found in the received signal and then the combination circuit realizes the combination.

REFERENCES:
patent: 4100499 (1978-07-01), Monrolin
patent: 4472711 (1984-09-01), Stollberger et al.
patent: 5570372 (1996-10-01), Shaffer
patent: 5844907 (1996-07-01), Uchiki et al.
Excerpts from Digital Communications by Satellite (Bhargave, Jateck Publishing Co., Ltd), in 1981 by John Wiley & Sons Inc.
Excerpts from TDMA Communication (Yamamoto, Kato, Electric Information Communication Academy).

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