Device for correcting phase noise in a digital receiver

Details Device for correcting phase noise in a digital receiver Device for correcting phase noise in a digital receiver

1997-02-10

1999-07-27

Vo, Don N.

Pulse or digital communications

Receivers

Angle modulation

375346, 329307, 455310, H04L 2722, H04L 100, H03D 300, H04B 110

Patent

active

059303069

ABSTRACT:
A digital receiver includes a mixer stage receiving a carrier signal S(t) and delivering an intermediate frequency signal S.sub.FI (t) to a demodulation stage. The mixer stage is furnished with a PLL circuit for generating a signal at a given frequency. The digital receiver further includes a phase noise digital correction stage for tapping off a noise signal .phi..sub.n (t) generated by the PLL circuit in the mixer stage and for compensating the noise signal .phi..sub.n (t) in the demodulation stage.

REFERENCES:
patent: 3787775 (1974-01-01), Lanning
patent: 4359692 (1982-11-01), Ryan
patent: 4689804 (1987-08-01), Srinivasagopalan et al.
patent: 4918748 (1990-04-01), Shahriary et al.
patent: 5109532 (1992-04-01), Petrovic et al.
patent: 5584062 (1996-12-01), Meador et al.
Patent Abstracts of Japan, vol. 912, No. 367 (E-664), Sep. 30, 1988 & JP-A-63 119306 (Hitachi LTD; Others: 01), May 24, 1988.
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