Question
Download Solution PDFm=1 वाले AM में, एक साइडबैंड में शक्ति है:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसही विकल्प 1 है
अवधारणा:
संचरित AM तरंग की शक्ति इस प्रकार दी गई है:
\(P_t = {P_c}\left( {1 + \frac{{{μ ^2}}}{2}} \right)\)
\(P_t = {P_c} + P_c\frac{μ ^2}{2}\)
वाहक में शक्ति = Pc
दोनों साइडबैंड में शक्ति निम्न द्वारा दी गई है:
\(P_s= \frac{{{P_c}{μ^2}}}{2}\)
चूंकि शक्ति को साइडबैंड के बाईं और दाईं ओर समान रूप से वितरित किया जाता है, साइडबैंड में से एक में शक्ति इस प्रकार दी जाती है:
\(P_{s1}= \frac{{{P_c}{u^2}}}{4}\) ............(1)
स्पष्टीकरण:
दिया गया मॉड्यूलेशन इंडेक्स 1 है
समीकरण 1 में मॉडुलन सूचकांक =1 रखने पर हमें प्राप्त होता है
\(P_{s1}= \frac{{{P_c}{1^2}}}{4} = \frac{{{P_c}{}}}{4}\)
इसलिए साइडबैंड की शक्ति वाहक शक्ति का एक-चौथाई है।
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