고전력 증폭기의 비선형 왜곡 보상을 위한 전치 왜곡 장치 및 그 방법
서재현, 이용태, 김승원
- 7068980 (2006.06.27)
- A pre-distortion apparatus and method for recovering nonlinear distortion of a high power amplifier. The pre-distortion apparatus includes: a demodulator for demodulating a signal outputted from the high power amplifier, generating a demodulated signal; a first storage unit for storing the demodulated signal outputted from the demodulator; a second storage unit for storing a reference transmission signal outputted from a transmitter of a transmitting system; a digital signal processor for calculating a pre-distortion coefficient by comparing the demodulated signal and the reference transmission signal stored at the first storage unit and the second storage unit; and a third storage unit for storing the pre-distortion coefficient calculated at the digital signal processor.
- KSP 제안 키워드
- Digital Signal, Digital signal processor(DSP), High power, High power amplifier(HPA), Pre-distortion, Signal processor, Storage unit, nonlinear distortion, power amplifiers(PAs)