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

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Published

2019-01-24

How to Cite

1.
احمد ع, يونس م. فعالية نظم إرسال المعلومات الرقمية. Tuj-eng [Internet]. 2019Jan.24 [cited 2025Jan.28];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

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

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