فعالية نظم إرسال المعلومات الرقمية

Authors

  • علي احمد
  • معين يونس

Abstract

إن دقة إرسال المعلومات واستقبالها تقيّم جودة نظم الاتصال. وحتى الآن لا توجد معايير وحيدة لمقارنة هذه النظم والتي من خصائصها مقاومة التشويش والفعالية والعوامل الهندسية والاقتصادية وعلاقة احتمال الخطأ مع نسبة الإشارة إلى الضجيج.

إنّ فعالية نظم الاتصال الرقمي يمكن أن تحسن جوهرياً باستخدام طرق أكثر حداثة بحيث تسمح باستخدام أفضل لقدرة قناة الاتصال ويمكن تحسين الدقة بدون زيادة نسبة الإشارة إلى الضجيج باستخدام الاستطاعة والتردد. لذلك لابد من معرفة العلاقة بين هذه المعاملات ومع احتمال الخطأ وذلك باستخدام التعديل الترددي والطوري، ومقارنة هذين النظامين عند زيادة عدد مواقع الإشارة.

 

The accuracy of transmitting and receiving information could evaluate the communication-systems-goodness. Up till now, there is no singular standardization method to compare such systems, which have noises-residency-characteristics-effectiveness, economical, engineering parameters and the probability of defects of noises-to-signal ratio relation.

Digital communication effectiveness-systems could essentially be developed using more modernized methods and allowing the use of better communication channel power. But we can develop that accuracy without increasing the noise-to-signal-ratio by using the power-frequency-parameters. This requires knowing the relation between those parameters, with defects probability, using the phase-frequency modulator. This method enables us to compare these two systems at increasing the numbers of signals location

Downloads

Published

2019-01-24

How to Cite

1.
احمد ع, يونس م. فعالية نظم إرسال المعلومات الرقمية. Tuj-eng [Internet]. 2019Jan.24 [cited 2024Nov.24];29(2). Available from: https://journal.tishreen.edu.sy/index.php/engscnc/article/view/6994

Issue

Vol. 29 No. 2 (2007): العلوم الهندسية

Section

Articles

License

Copyright (c) 2019 ttps://creativecommons.org/licenses/by-nc-sa/4.0/

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in  Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series   .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of  Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series     Publisher

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Most read articles by the same author(s)

1 2 3 > >>