SOME ASPECTS OF THE SPECTRUM OF MODULATED PULSES

Abstract

A modified method of deriving the spectrum of modulated pulses is given here. According to this method, it is shown that there are two distinct types among the basic pulse frequency and pulse phase modulation systems and these types are compared with continuous wave frequency and phase modulation systems. The distortion that arises with the different methods of demodulation are examined and curves have been drawn for harmonic distortion in the case of pulse width modulation.