发明授权
- 专利标题： Automatic gain control with digital filtering for radio-frequency communications systems
- 专利标题（中）： 用于射频通信系统的数字滤波的自动增益控制
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申请号： US09693799申请日： 2000-10-20
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公开(公告)号： US06985099B1公开(公告)日： 2006-01-10
- 发明人: Yuda Yehuda Luz , Ron Rotstein , Gregory Agami
- 申请人： Yuda Yehuda Luz , Ron Rotstein , Gregory Agami
- 申请人地址： US IL Schaumburg
- 专利权人： Motorola, Inc.
- 当前专利权人： Motorola, Inc.
- 当前专利权人地址： US IL Schaumburg
- 代理商 Steven A. May
- 主分类号： H03M1/18
- IPC分类号： H03M1/18
摘要：
An automatic gain control includes a digital lowpass filter for filtering a series of digital samples generated by an analog-to-digital converter to generate a lowpass filtered digital sample series; a power averager coupled to the digital lowpass filter for calculating an average power of the lowpass filtered digital sample series; and a lookup table coupled to the power averager for setting a selectable gain of an amplifier coupled to the analog-to-digital converter as a function of the average power.
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