ec8395 communication engineering important questions rejinpaul

When a signal m(t)=3cos(2?x103t) modulates a carrier c(t)=5cos(πx106t), assess the modulation index and Can you formulate the theory for modulation index of an AM signal and write its classification.ĥ. Describe AM modulated wave for modulation index=0.5 and its spectra.Ĥ. Discover the need modulation in communication systems?ģ. If you require any other notes/study materials, you can comment in the below section.Anna University Regulation 2017 EC8395 CE Important Questions with Answer Key and 3rd SEM EC8395 Communication Engineering Answer Key is listed down for students to make perfect utilization and score maximum marks with our study materials.ġ. InĪnalog modulation both information and carrier signal are analog in nature, whereas in digital information signal Modulation is classified into two types they are, Analog modulation and Digital modulation. The process of changing any one of the characteristics of carrier signal with respect to information signal is The process of modifying or changing any characteristics of any signal is called modulation.Īny signal has three characteristic they are Information from the source should be modulated before transmission to enable proper transmission of information from transmitter to receiver.

In Analog communication the transmit information is continuous in nature, whereas in digital communication it is discrete in nature.

This processing of raw information to convert it into a form that is suitable for a medium is called as modulation.Ĭommunication can be of two types- Analog & Digital The information that needs to be transmitted may not be in a form that is suitable for all medium. This medium can be wired or wireless medium. Communication between any two points or places requires a medium in between them. Information can be image, text or any other data. Download link for 3rd SEM EC8395 Communication Engineering Engineering Lecture Handwritten Notes are listed down for students to make perfect utilization and score maximum marks with our study materials.Ĭommunication is the process of conveying or transferring of information from one point to another point. Anna University Regulation 2017 EC8395 CE Notes, Communication Engineering Engineering Lecture Handwritten Notes for all 5 units are provided below.

Ec8395 communication engineering important questions rejinpaul