SYSTEM AND METHOD FOR PRODUCING SIGNAL AMPLIFIED USING PLURAL AMPLITUDES ACROSS SPECTRUM

摘要

PROBLEM TO BE SOLVED: To provide an amplifier distortion reduction device for detecting plural amplitudes correspondent in time within a frequency band of operation. SOLUTION: In response to at least one of plural amplitudes, the control of components is performed within the frequency band of operation and the amplifier distortion reducing device is adaptive to operating conditions to be changed. A processing circuitry 82 can generate a frequency spectrum expression within the frequency band of operation by using a time sample. The processing circuitry 82 is provided with an analog/digital(A/D) converter 88 and this A/D converter 88 samples the radio frequency(RF) signal on the frequency band of operation and converts it to a digital sample value. A digital receiver 90 deforms the digital sample value using Fourier transforms and generates a digital domain frequency spectrum expression within the frequency band of operation.