- Q3 Fm 40 Marks Build A Simulink Model Following Figure 3 0000 00 Fm Signal Zero Order Hold Generator Fm Modulator Pa 1 (48.83 KiB) Viewed 33 times
Q3. FM (40 marks) Build a Simulink model following Figure 3. 0000 00 FM Signal Zero-Order Hold Generator FM Modulator Passband Spectrum Analyzer 2 Scope 1 Scope 2 Spectrum Analyzer 1 Figure 3 An FM simulation model in Simulink The FM signal you should generate is xy(t) = cos(27 x 10%+ + kr Scos(4 x 10^t)). The value of k, depends on the modulation index, and the modulation index is determined by Table 1. Adjust the parameters in the simulation model accordingly and answer the following questions: the modulation index=1 a. What is the value of kp? Provide the details of your calculation. (5 marks) b. Use the power spectrum from the spectrum analyzer with appropriate settings, obtain the effective bandwidth of X3(6), where the effective bandwidth should include at least 99.99% of the power of xz(t). (20 marks) C. Plot the power spectrum of xz(t) by hand, where you should display components that include at least 99.99% of the power of xz(t) (Hint: you may obtain the value of Jn (B) by the MATLAB command "besseli(n,ß)"). (15 marks)