FSTCOCA¹¹⁶⁸³⁹BNC¹⁴⁴⁶⁶⁴⁺³ 基本例句 n.锻钢¹⁰⁰ In Linear system, Fourier Transform FT, Fourier Series FST, Fourier Z Transform FZT and Discrete Fourier Transform DFT are used to analyze and process signals. 在信号分析与处理中,常涉及的积分变换是傅里叶变换 FT、傅里叶级数 FST、傅里叶 Z变换 FZT及离散付里叶变换 DFT。 cnki