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AUTOMATIC GAIN CONTROL APPARATUS OUTPUTTING NONLINEARLY VARYING CONTROL VALUE AND METHOD FOR OUTPUTTING GAIN CONTROL SIGNAL THEREOF
AUTOMATIC GAIN CONTROL APPARATUS OUTPUTTING NONLINEARLY VARYING CONTROL VALUE AND METHOD FOR OUTPUTTING GAIN CONTROL SIGNAL THEREOF
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机译:自动增益控制设备输出非线性变化的控制值及其输出增益控制信号的方法
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摘要
PURPOSE: An automatic gain control apparatus outputting a nonlinearly varying control value, and a method for outputting a gain control signal thereof are provided, which control a desired signal level within a short time, and thus perform accurate gain control. CONSTITUTION: An estimator estimates a level of an input signal. A subtracter calculates a difference value between the above level estimated by the above estimator and a reference value. And a gain controller(60) outputs a control value scaling the difference value which nonlinearly is output from the subtracter. The gain controller outputs the control value proportional to a square of the difference value.
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