پایان نامه بررسی روش های حذف سیگنال های تداخلی در کانال مراقبت در رادار های پسیو مبتنی بر سیگنال DVB-T

فهرست:

فصل اول: مقدمه­ای بر رادار پسیو مبتنی بر سیگنال DVB-T

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          1-1- مقدمه

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          1-2- بررسی رادار پسیو مبتنی بر سیگنال DVB-T

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          1-3- ساختار پایان­نامه

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فصل دوم: آشنایی با سیگنالینگDVB-T  و تابع ابهام آن

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          2-1- مقدمه­ای بر سیگنالینگ DVB-T

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          2-2- بررسی لایه فیزیکی DVB-T

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                    2-2-1- MPEG و مالتی­پلکس کانال­ها

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                    2-2-2- Splitter

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                    2-2-3- Scrambler

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                    2-2-4- کدینگ و اینترلیوینگ خارجی

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                    2-2-5- کدینگ داخلی

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                    2-2-6- اینترلیوینگ داخلی

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                              2-2-6-1- اینترلیوینگ داخلی روی بیت­ها

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                              2-2-6-2- اینترلیوینگ داخلی روی سمبل­ها

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                    2-2-7- Signal Constellation

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                    2-2-8- ساختار فریم OFDM

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          2-3- نحوه پوشش DVB-T

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          2-4- توان فرستنده­های DVB-T

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          2-5- بررسی تابع ابهام سیگنال DVB-T

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                    2-5-1- تابع ابهام DVB-T

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فصل سوم: معرفی روش­های وفقی حذف تداخل در رادارهای پسیو مبتنی بر سیگنال DVB-T و چگونگی آشکارسازی هدف در آن­ها

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          3-1- مقدمه

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          3-2- جایگاه و عملکرد فیلترهای وفقی در رادارهای پسیو

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          3-3- معرفی روش­های وفقی حذف تداخل

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                    3-3-1- فیلتر وینر

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                    3-3-2- الگوریتم LMS

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                    3-3-3- الگوریتم NLMS

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                    3-3-4- الگوریتم VSLMS و VSNLMS

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                    3-3-5- الگوریتم RLS

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                    3-3-6- الگوریتم Fast-RLS

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          3-4- مقایسه پیچیدگی محاسباتی روش­های وفقی

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          3-5- آشکارساز GLR

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فصل چهارم: نتایج شبیه­سازی در بررسی عملکرد فیلترهای وفقی در حذف تداخل و آشکارسازی هدف در رادارهای پسیو مبتنی بر سیگنال

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          4-1- مقدمه

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          4-2- تنظیم مناسب پارامترهای فیلترهای وفقی

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                    4-2-1- تنظیم­مناسب پارامترهای فیلترهای وفقی خانواده LMS

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                    4-2-2- تنظیم­مناسب پارامترهای فیلترهای وفقی خانواده RLS

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          4-3- بررسی و مقایسه عملکرد فیلترهای وفقی در حذف تداخل

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          4-4- آشکارسازی هدف

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فصل پنجم: نتیجه و پیشنهاد برای پژوهش­های آتی

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          5-1- نتیجه

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          5-2- پیشنهاد برای پژوهش­های آتی

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- فهرست منابع

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- چکیده به زبان انگلیسی

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