Mechanism of the influence of low frequency modulating magnetic field on brain wave rhythm 低频调制磁场对脑电节律的影响机理
Direct measurement of ch4 absorption spectrometer by means of tunable frequency modulated diode laser 激光频率调制光谱法测量甲烷的吸收光谱
Radio broadcasting systems - very high frequency , frequency modulated , sound broadcasting transmitters ; english version ets 300384 : 1995 无线电广播系统.甚高频调频的声音广播发射机
In order to obtain high range resolution , the chirp signal is used as subpulse to form stepped frequency modulated radar signal 摘要为了获得高距离分辨率,将线性调频信号作为子脉冲构成调频步进雷达信号。