. The Bell System technical journal . m zero to infinity. The left-hand column of Fig. 2shows a number of the more important harmonic components of theD signal, the relative magnitudes and phase relationships beingas indicated. The first is the d-c. component; the second is a sinewave of the same period as the over-all signal, and is referred to as thefirst harmonic. The wave shown in part c of the figure is twice thefrequency of the over-all signal and is referred to as the second har-monic. Following this in turn are shown the third to tenth harmonics. 534 BELL SYSTEM TECHNICAL JOURNAL The r
. The Bell System technical journal . m zero to infinity. The left-hand column of Fig. 2shows a number of the more important harmonic components of theD signal, the relative magnitudes and phase relationships beingas indicated. The first is the d-c. component; the second is a sinewave of the same period as the over-all signal, and is referred to as thefirst harmonic. The wave shown in part c of the figure is twice thefrequency of the over-all signal and is referred to as the second har-monic. Following this in turn are shown the third to tenth harmonics. 534 BELL SYSTEM TECHNICAL JOURNAL The right-hand portion of the same figure shows the synthesis ofthis signal from component parts. From this figure it may be seenthat by the time the seventh harmonic (curve q) or even the fifth har-monic (curve p) has been added, there is a resemblance between theresultant and the original wave. START 12 3 4 5 STOPTELETYPEWRITER D SIGNALAT 368 OPERATIONS PER MINUTE I EIGHTH 49,1 j NINTH /\/\j\r\/\/\j\/\/y^K k TENTH m H-C 1 [>C COMPONENT + FIRST HAR-MONIC (a + b) q p+g + h 0-4311
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
