Matlab Poroject DTMF... ID: 181111

A 20ECE031_Math_for_Comm_Project_S1_2020_2021 (1).pdf - Adobe Acrobat Reader DC File Edit View Sign Window Help Home Tools Lab1_Drawing the ... 20ECE031_Math_fo... X Sign In 1 3 / 4 70% LA Search 'Edit Image' 1. Write a Matlab function x = sym2TT(S) that generates a 100 milliseconds time- domain signal corresponding to a given symbol S. The set of all symbols and their corresponding frequencies are indicated in Figure I 2. Generate a signal r(t) which contain a sequence of DTMF symbols corresponding to your BUE ID# Add a 20 milliseconds guard interval between consecutive DTMF symbols. Po Export PDF 3. Create a signal y(t) which is the signal r(t) contaminated with additive white Gaus- sian noise with variance 0.1. Edit PDF Create PDF Comment Combine Files El Organize Pages Es Compress PDF 4. Store the generated signal y(t) as an audio file with extension (*.wav) 5. Plot the signal y(t). Note that, this plot does not provide any frequency-domain information about y(t). 6. Use the FFT command to obtain the spectrum Y() of the signal y(t), hence plot the magnitude spectrum (in dB) in the frequency range 600Hz