Reference no: EM138507 , Length: 3000 Words
Part A -Analogue communication
1. Write a brief explanation of the principles of the super-heterodyne receiver. It may help to use a simple block diagram to express the process. Explain the purpose of the Intermediate Frequency amplifiers, how do they process and shape the received signal. [500 words]
2. Write a brief summary of how noise can affect an AM/FM Superhet receiver. What are the differences in how the two demodulator stages work and discuss how the automatic gain and automatic frequency control voltages are produced and used?[500 words]
3. Discuss using diagrams where appropriate how analogue signals are converted to digital signals, discuss the need for non-uniform quantisation and the process of conversion back to an analogue signal. [500 words]
Part B - Digital Communication
1. Write a short technical report on each of the following digital communication techniques-
a. Frequency Division Multiplexing [500 words]
b. Delta Modulation [500 words]
c. Error Detection and Correction [500 words] HARVARD referencing and CITATION should be used and a detailed bibliography provided. This may include web addresses, as well as any books and journals used etc.
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Principles of the super-heterodyne receiver
: Write a brief explanation of the principles of the super-heterodyne receiver. It may help to use a simple block diagram to express the process. Explain the purpose of the Intermediate Frequency amplifiers,
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