基本解釋[電子、通信與自動(dòng)控制技術(shù)]四次方譜專業(yè)釋義電子、通信與自動(dòng)控制技術(shù)四次方譜A complete theoretical analysis for the square and quartic spectrum line feature is carried out. The spectrum line’s existence, position and amplitude are deduced.本文詳細(xì)分析了常見數(shù)字調(diào)制方式的平方譜與四次方譜的譜線特征,從理論上推導(dǎo)了譜線的成因、位置和強(qiáng)度。