A Methodology for Systems Engineering, Volume 24 |
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Page 25
... TELEPHONE CHANNELS 2 108 8 2 107 8 T TELEPHONE CIRCUIT MILEAGE 106 8 6 T 4 102 105 1946 1950 1954 1958 1962 1966 1970 AT END OF YEAR Fig . 2-2 . Growth of TV and telephone circuit miles in TD - 2 . relay points and terminals together ...
... TELEPHONE CHANNELS 2 108 8 2 107 8 T TELEPHONE CIRCUIT MILEAGE 106 8 6 T 4 102 105 1946 1950 1954 1958 1962 1966 1970 AT END OF YEAR Fig . 2-2 . Growth of TV and telephone circuit miles in TD - 2 . relay points and terminals together ...
Page 100
... telephone , one kind of input obtains when the telephone is lifted ( called a connect signal ) ; another kind when dialing ( dial pulse signals ) ; a third kind when the telephone is replaced ( disconnect signal ) . The system dis ...
... telephone , one kind of input obtains when the telephone is lifted ( called a connect signal ) ; another kind when dialing ( dial pulse signals ) ; a third kind when the telephone is replaced ( disconnect signal ) . The system dis ...
Page 196
... telephone service . The figure shows the percentage of consumer units in each of four income classes having telephones . When these data are smoothed , as in Fig . 6-8 ( b ) , we can interpret q ( ) as the probability that the consumers ...
... telephone service . The figure shows the percentage of consumer units in each of four income classes having telephones . When these data are smoothed , as in Fig . 6-8 ( b ) , we can interpret q ( ) as the probability that the consumers ...
Contents
WHAT IS SYSTEMS ENGINEERING? | 3 |
THE TD2 RADIO RELAY SYSTEM | 22 |
659 | 60 |
Copyright | |
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Common terms and phrases
alternative analysis attenuation distortion basic behavior block diagram called cent channel Chapter circuit complete components cost creative creative technology criterion decision decision theory defined definition economic encoding entropy environment equation equipment evaluation example existing Exploratory Planning factors feedback field frequency given important income individual information theory inputs and outputs interval scale kinds Laboratories level of measurement Mason's rule matrix means measure ment methods microwave minimax mixed strategy noise objectives operations research optimal organization payoff payoff matrix physical possible preference probability problem profit projects properties radio ratio ratio scale requirements scale signal signal-flow graph specific standing plans statistical studies subsystems systems engineering systems engineering process systems synthesis TD-2 system technical techniques telephone television theory tion transfer function transmission transmittance variables