Digital matched filter

Details Digital matched filter Digital matched filter

1997-02-27

1999-05-11

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375343, H04K1/10

Patent

active

059035951

ABSTRACT:
The digital matched filter according to the present invention comprises a storage circuit for accumulating received signals by an A/D converter without shifting the signals, an address signal generating circuit for controlling an address for accumulating output from the A/D converter there, a reference data generating circuit for generating spread code for receiving, a ring-formed shift register for shifting output from the reference data generating circuit, a multiplying circuit for multiplying output from the storage circuit not executing shifting by output from the shift register, an adding circuit for adding output from the multiplying circuit, and a timing signal generating circuit for controlling timing for the operations described above.

REFERENCES:
patent: 4630283 (1986-12-01), Schiff
patent: 4930139 (1990-05-01), Chandler et al.
patent: 5144640 (1992-09-01), Yamamoto
patent: 5583884 (1996-12-01), Maruyama et al.

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