Three features parameters derived from the instantaneousamplitude, instantaneous phase, instantaneous frequency and power spectrum of analogue modulated signals are presented in this article.
The appearances of BSRs oon near-offset profile, stacked profile, migration profile, migration profile, instantaneousamplitude profile and instantaneous phase profile are compared and described.
比较了近炮检距剖面、叠加剖面、偏移剖面、瞬时振幅剖面与瞬时相位剖面上BSR的显示特征。
3
The significant factors which exert an influence on instantaneous fluctuation of motor current are in sequence :Vari-speed wave form, vari-speed amplitude and vari-speed frequency.