Reference no: EM13354430 , 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.