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2. 发明授权

US5029182A Automatic gain control (AGC) for frequency hopping receiver 失效
标题翻译：跳频接收机的自动增益控制（AGC）
公开(公告)号：US5029182A
公开(公告)日：1991-07-02
申请号：US489867
申请日：1990-03-05
申请人： Khiem V. Cai , James L. Thomas , Patrick L. Lim
发明人： Khiem V. Cai , James L. Thomas , Patrick L. Lim
IPC分类号： H03G3/20 , H04B1/713 , H04B1/715
CPC分类号： H04B1/715 , H03G3/3068 , H04B1/713 , H04B2001/7152
摘要： The invention is an Automatic Gain Control ("AGC") sampling structure for use with frequency-hopped high frequency waveforms containing known transmitted signals embedded within communications traffic. The sampling structure is a digital structure and an AGC selection algorithm used in conjunction with a standard closed loop analog AGC circuit in which the AGC generator detects the received audio level and generates a direct current control voltage for controlling an amplification stage. This AGC control voltage is sampled during the reception of known transmitted signals to provide a series of independent AGC samples to a digital controller. The digital controller determines th eoptimum AGC control voltage based on a selection algorithm which uses the technique of ordered statistics to select the correct ordered sample to provide the optimum AGC control level for the receiver. The standard AGC control loop is the interrupted and the optimum AGC voltage selected by the digital controller is coupled to provide the direct current control voltage to the amplification stage.
摘要翻译：本发明是一种自动增益控制（“AGC”）采样结构，用于包含嵌入在通信业务中的已知传输信号的跳频高频波形。采样结构是与标准闭环模拟AGC电路一起使用的数字结构和AGC选择算法，其中AGC发生器检测接收的音频电平并产生用于控制放大级的直流控制电压。在接收已知的发射信号期间对该AGC控制电压进行采样，以向数字控制器提供一系列独立的AGC采样。数字控制器基于选择算法确定最佳AGC控制电压，该选择算法使用有序统计技术来选择正确的有序样本，为接收机提供最佳的AGC控制电平。标准的AGC控制环路被中断，由数字控制器选择的最佳AGC电压被耦合以向放大级提供直流控制电压。

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