Loss in channel capacity resulting from starting delay in meteor-burst communication
نویسندگان
چکیده
منابع مشابه
Loss in Channel Capacity Resulting From Starting Delay in Meteor-Burst Communication
It appears that ill a ny pracLica.l meLeor-burst communication system , there will always be a brief time in terval , after the meteor trail is formed, before the channel is used for message transmission . In the case of t he familial' controlled two-way systems, this in ter val consists of one delay associated with the rounel-trip propagation time, a second associated wi th the recogni tion an...
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A software modem for Meteor Burst Communication (MBC) is presented. The software is running on a DSP board, connected to a PC for user interface. MBC is a unique type of radio communication, which is suitable for non-realtime remote data collection. Forward scattering of radio waves from ionized trails of meteors provides reliable communication channel for path lengths from 300 to 2000 km and i...
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A discrete time queueing model for the performance of meteor burst packet communication systems is analyzed using matrix analytic methods. A meteor burst system uses ionized layers formed by naturally occurring meteor bursts in the earth’s atmosphere to reflect radio signals. Due to its nuclear survivability, inherent privacy, and low cost, such a method of communication has gained considerable...
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The ITU Radiocommunication Assembly, considering a) that experiments have already shown the practicability of utilizing the frequency band between 30 and 50 MHz for transmission by meteor-burst propagation to distances well beyond the horizon; b) that systems using this mode of propagation are already in service for burst data transmission, recommends 1. that Annex 1 be used as guidance for the...
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چکیده ارتباط در کلاس به عوامل زیادی از جمله معلمان، دانش آموزان، برنامه های درسی و از همه مهم تر، مواد آموزشی وابسته است. در تدریس ارتباطی زبان که تاکید زیادی بر توانش ارتباطی دارد، کتاب درسی به عنوان عامل موثر بر پویایی کلاس محسوب میگردد که درس ها را از طریق فراهم آوردن متن ارتباط کلاسی و هم چنین نوع تمرین زبانی که دانش آموزان در طول فعالیت های کلاسی به آن مشغول اند، کنترل می کند. این حقیقت ک...
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ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards, Section D: Radio Propagation
سال: 1960
ISSN: 1060-1783
DOI: 10.6028/jres.064d.059