. The Bell System technical journal . nd 20-decibel differences insignal level give the square-law detector an advantage of one and twodecibels, respectively. In receiving two bundles of waves the branchoutputs commonly fade in and out with the result that their averageratio is of the order of 10 decibels. Such were the conditions, as well Er. oc^l + / esB\esA r u - 2 Es En <x (l + CsA / u = 1 412 BELL SYSTEM TECHNICAL JOURNAL as could be estimated, during the two-bundle tests in Tables III and IV,The one-decibel correction applied to those results in Table V is there-fore justified. In the
. The Bell System technical journal . nd 20-decibel differences insignal level give the square-law detector an advantage of one and twodecibels, respectively. In receiving two bundles of waves the branchoutputs commonly fade in and out with the result that their averageratio is of the order of 10 decibels. Such were the conditions, as well Er. oc^l + / esB\esA r u - 2 Es En <x (l + CsA / u = 1 412 BELL SYSTEM TECHNICAL JOURNAL as could be estimated, during the two-bundle tests in Tables III and IV,The one-decibel correction applied to those results in Table V is there-fore justified. In the one-wave bundle measurements, the percentageof time during which the branch outputs were substantially differentwas so small that no correction was applied in Table V. In the caseof space diversity the correction is also small; about decibel seemsreasonable. O-MEASURED WITH SQUARE LAW DETECTOR•-MEASURED WITH LINEAR DETECTOR501 Y \ L ^CALC. SQ. LAW \ ^ * •— _ — —-^CALC. ■■..^:::_LINEAR 10 20 30 40 Bsa/^SB ^ DECIBELS. Ssa/^sb in DECIBELS NOISE A (nj
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
