Self-adaption gain and/or phase regulation control system and method thereof

Application Number: 00124104
Application Date: 2000.08.16
Publication Number: 1285654
Publication Date: 2001.02.28
Priority Information: 1999/8/19 US 09/377,387
International: H03F1/32;H04B1/00
Applicant(s) Name: Lucent Technologies Inc.
Inventor(s) Name: Rize Ganadan;Robert E.Meir
Patent Agency Code: 11038
Patent Agent: jiang shixun
Abstract An adaptive gain and/or phase control system adapts the gain and/or phase adjustment resolution to provide improved performance. For example, the adaptive gain and/or phase control system can dynamically adjust the adjustment resolution for gain and/or phase adjustments as a function of the error signal(s). In response to a large error signal(s) (far from the null), the adaptive gain/or phase control system decreases the adjustment resolution, resulting in a faster convergence rate. In a feed forward distortion reduction system, decreasing the adjustment resolution improves the transient response of the amplifier. As phase or gain adjustments are made to approach the null, the error signal reduces, and the adaptive distortion reduction system increases the adjustment resolution.