compared with traditional feedforward, this paper presents an adaptive control method based on power detection minimization . with strong and fast digital signal processing ability, the adaptive system can control feedforward amplifier parameters exactly and suppress non-linear products at last by detecting changes of signals and environments 與傳統(tǒng)前饋法相比,本文加入了基于最小功率檢測(cè)算法的自適應(yīng)控制電路,對(duì)輸入功率變化、溫漂和器件老化等導(dǎo)致系統(tǒng)性能下降的擾動(dòng)進(jìn)行自適應(yīng)調(diào)整,使功放的非線性失真在很大程度上得到改善。