'Direct fm' diaporamas de présentation

FREQUENCY AND PHASE MODULATION (ANGLE MODULATION)

1.53k views • 68 slides

NARROW-BAND FREQUENCY MODULATION

NARROW-BAND FREQUENCY MODULATION. For small values of ? ,. Thus the expression for FM signal. can be expanded as. since. Then. since. Amplitude spectrum (single-sided plot). WIDE-BAND FREQUENCY MODULATION. Wide-band FM signal.

1.4k views • 37 slides

ECE4371, Fall, 2009

ECE4371, Fall, 2009. Zhu Han Department of Electrical and Computer Engineering Class 6 Sep. 10 th , 2007. FM Modulator and Demodulator. FM modulator Direct FM Indirect FM FM demodulator Direct: use frequency discriminator (frequency-voltage converter) Ratio detector

476 views • 30 slides

FM SIGNAL GENERATION

FM SIGNAL GENERATION. They are two basic methods of generating frequency-Modulated signals Direct Method Indirect Method. DIRECT FM.

944 views • 24 slides