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Notice: Undefined variable: pz in /var/customers/webs/loxblog/core.php on line 3699 پردازش سیگنال های دیجیتال dsp
مقاله کارشناسی ارشد برق مقاله پردازش سیگنال های دیجیتال dsp - Discrete time signal processing
فایل ضمیمه حاوی یک مقاله کامل در مورد درس پردازش سیگنالهای دیجیتال یا همان dsp می باشد.در این مقاله به پردازش سیگنال های گسسته زمان میپردازیم که در گیرنده ها و فرستنده های مخابراتی نقش اساسی ایفا میکنند.همچنین به توضیحی درمورد گیرنده های سوپرهتروداین پرداخته که از رایج ترین گیرنده های جهان هستند.در این مقاله از شکل ها، نمودار ها و فرمول های جدید،جهت روشن شدن بیشتر موضوع استفاده شده است.
چکیده: بخش مخابرات هوایی از مهمترین و اصلی ترین بخش هاست و زیرسیستم های یك سیستم هوایی را تشكیل می دهد. درحوزه صنعت هوایی و ناوبری، گیرنده ها و فرستنده های رادیویی نقش اساسی را دربخش مخابراتی برعهده دارند بخش مخابرات از سه بخش اساسی گیرنده، فرستنده و كانال مخابراتی تشكیل شده است كه دراین مقاله بیشتر به پردازش سیگنالهای گسسته درزمان می پردازیم كه در گیرنده ها و فرستنده های مخابراتی نقش اساسی را ایفا می كنند گیرنده های رادیویی نقش اساس درآشكارسازی، آنالیز، شنود و جهت یابی سیگنالهای دریافتی داشته كه عمدتاً از نوع سوپرهیتروداین استفاده می شود. علاوه بر سیستم های رادیویی، بسیاری از انواع سیتمها برای ارسال دیتاهای با ارزش، از سیگنال های رادیویی RF استفاده می كنند كه دارای رشدی مداوم ، پیوسته و قابل توجه هستند، گیرنده های هوایی برای انواع مختلفی از كاربردها و حوزه ای عملیاتی طراحی و بنا به نیاز، بصورت انفرادی و یا عمدتاً درقالب سیستم بكارگیری می شوند كه عمده اهداف و مقاصد این نوع گیرنده ها برای ارتباطات هوایی یا زمین به هوا و بالعكس انجام می شود ...
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فرمت فایل: DOC (ورد 2003) قابل ویرایش تعداد صفحات: 14
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نویسنده : ziba
تاریخ : 
