Title :
Echoes in Transmission at 450 Megacycles from Land-to-Car Radio Units
Author :
Young, W.R., Jr. ; Lacy, L.Y.
Author_Institution :
Bell Telephone Laboratories, Inc., New York, N.Y.
fDate :
3/1/1950 12:00:00 AM
Abstract :
By the use of short pulses of 450-megacycle carrier, the echoes which appear in transmitting from a land station to a moving car in New York City have been investigated. The results show the multiple-path nature of transmission. Sample pictures of the received pulses are given, and, in addition, a statistical analysis of the multiple-path situation is presented. These results are of use in considering the possibilities of systems employing a wide modulation band.
Keywords :
Cities and towns; Delay; Frequency; Pulse measurements; Senior members; Statistical analysis; Telephony; Testing; Visualization; Wideband;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1950.230736
