Theoretical fundamentals of pulse transmission — II

Part I of this paper dealt with various idealized transmission characteristics and with methods of evaluating pulse distortion resulting from various system imperfections. In Part II the resultant transmission impairments or limitations on pulse transmission rates are discussed for systems with low-pass, symmetrical band-pass and asymmetrical band-pass characteristics, and a comparison made of the transmission performance of double and vestigial sideband systems. The limitation on channel capacity imposed by random imperfections in the transmission-frequency characteristic, as compared to random noise, is also discussed.