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Question 10 - AM
Implement the function described above in matlab by performing
the following:
1. Sketching a flow chart to demonstrate the operation of this
function
2. Writing the matlab code to implement this function
3. What is Double Sideband Transmission (DSB) and state an
advantage and disadvantage of using this type of transmission over
full carrier AM
4. What is Single Sideband Transmission (SSB) and state an
advantage and disadvantage of using this type of transmission over
full carrier AM
5. Explain the operation of the diode AM detector shown the
photo below:
Develop an automated solution for estimating the: i) bandwidth, BW, and ii) total power consumption, Pt, for full AM transmission with carrier, for different values of voltage amplitude (V) and maximum frequency (f) of the: i) carrier wave, Vc and fc, and ii) information signal, Vm and fm. In this automated solution the values of the unmodulated carrier current, Ic = 4.7 A, and antenna load, R1 = 752, are to be hard coded, and the following formulae are to be utilized in the calculations as follows: m=VIVS, = fc-fu Su = fc + fu BW = Sy -S 1: = Ic(1+m? /2 P = IR; + M m is the modulation index, SL & Su are the lower & upper sidebands, It is the total load current.

D C2 AM signal 主頁本 ”: Original information or modulating signal R C