Digital automatic gain control

Details Digital automatic gain control Digital automatic gain control

2005-04-25

2010-02-16

Perilla, Jason M. (Department: 2611)

Pulse or digital communications

Transmitters

Antinoise or distortion

Reexamination Certificate

active

07664201

ABSTRACT:
An automatic gain control system prevents input overload by precisely controlling the input level of a received, digitally modulated signal without variable gain amplification. Limiting amplification in conjunction with a logarithmic detection splits an input signal path in two, providing separate phase and amplitude information for downstream digital signal processing, where the separate phase and amplitude information is processed without variable gain artifacts. The separated phase information may further be divided into I and Q signals.

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