MEHTOD AND APPARATUS FOR CONTROLLING SIGNAL GAIN IN DIGITAL SIGNAL PROCESSING SYSTEM

摘要

The present invention relates to a signal gain control method and a signal gain control apparatus in a digital signal processing system, and the signal gain control method comprises a process measuring threshold power with peak power in respective periods; a process comparing threshold power with the peak power; and a process controlling the signal size of the period including the larger value than the threshold power and obtains the power of an input signal regardless of the power change of an input signal. [Reference numerals] (200) DC removing unit;(210) First step gain controlling unit;(220) Second step gain controlling unit;(AA) Input signal;(BB) Output signal