Road vehicles -- Road load -- Part 1: De
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Interchannel Interference in FM and PM Systems under Noises Loading Conditions
β Scribed by Bennett W., Curtis H., Rice S.
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β¦ Synopsis
// Bell System Technical Journal, 1955, Vol. 34, pp. 601β636.
One of the principal sources of interchannel interference in multichannel FM and PM systems is the dependence of the attenuation and phase shift of the transmission path on frequency. Here we study the interference produced by a simple kind of such a dependence, namely that due to a single echo. Besides being important in themselves, the results are of interest because they may be used to estimate the interference in other, more complicated cases.
In this paper expressions are derived for the interchannel interference produced by echoes of relatively small amplitude. Several important special cases are studied in detail and curves that simplify the computation of the interference power are presented.
section Page.
Introduction 601.
Development of General Formulas 602.
Applications to at Noise SignalFl 609.
Exact Expression, Equations (2.3)-(2.8) 610.
Ratio of Interference to Signal β Pm 611.
ratio of Interference to Signal β Fm 611.
approximations β Phase Modulation 611.
Table 3.1. 612.
Approximations β Frequency Modulation 614.
Table 4.1. 615.
Interchannel Interference Power 620.
Use of Equivalent Echo to Estimate Interchannel Interference 628.
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