Diversity receiver system used in digital communication

Details Diversity receiver system used in digital communication Diversity receiver system used in digital communication

1997-03-10

1998-09-08

Coles, Edward L.

Pulse or digital communications

Repeaters

Testing

375327, 375376, 455133, 455134, H04B 1702, H04B 710

Patent

active

058056432

ABSTRACT:
A diversity receiver system includes reception circuits connected to antennas for converting frequency of a received signal to a base band signal; a diversity branch comparison circuit for directing a base band signal to be used by comparing an intermediate frequency supplied through the reception circuit; a base band delay detection circuit for outputting a detection signal which is generated by a delay detection of the base band signal directed by the diversity branch comparison circuit; and a DPLL circuit for generating an internal clock by using the detection signal supplied from the base band delay detection circuit, thereby securing a stable reception and providing a diversity receiver system having a small circuit scale.

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Katsunori Miyatake, et al., "Selection Combining Diversity Reception Effect for Coherent QPSK Under Frequency Selective Fading", The Transactions of the IEICE, vol. E 73, No. 1 Jan. 1990.
Rajendra Kumar, "Novel Multireceiver Communication System Configurations Based on Optimal Estimation Theory" IEEE Transactions on Communications 40(1992) Nov., No. 11, New York.

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