Question
Download Solution PDFमान लीजिए x(t) नाइक्विस्ट दर ω0 के साथ एक सिग्नल है। y(t) = x(t)cos(ω0t) के लिए नाइक्विस्ट दर निर्धारित करें।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFअवधारणा:
जब हम किसी सिग्नल को cos (ω0t) से गुणा करते हैं तो वह सिग्नल ω0 से शिफ्ट हो जाता है
x (t) → X (ω)
यदि X(ω) हो
तो x(t) cos ω0t = y(t)
दिया गया है:
x(t) की नाइक्विस्ट दर ω0 है
माना ωm x(t) की अधिकतम आवृत्ति
2ωm = ω0
अब y (t) = x (t) cos ω0 t
y (t) की अधिकतम आवृत्ति = ω0 + ωm
=
=
y (t) की नाइक्विस्ट दर =
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