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Can you please answer these 7 questions. ( 1.1, 1.2, 1.3, 1.6, 1.7, 1.11, 1.14 )

ID: 3662442 • Letter: C

Question

Can you please answer these 7 questions. ( 1.1, 1.2, 1.3, 1.6, 1.7, 1.11, 1.14 ). uesing MATLAB.

1. Use Equation 1.17 to analytically determine the RMS value of a "square wave" with amplitude of 1.0 volt and a period of 0.2 sec. v(t) -0.2 0.2 Time (sec) 2. Generate one cycle of the square wave similar to the one shown above in a 500-point MATLAB array. Determine the RMS value of this waveform. When you take the square of the data array be sure to use a period before the up arrow so that MATLAB does the squaring point-by-point (i.e., x.2) 3. Use Equation 1.17 to analytically determine the RMS value of the waveform shown below with amplitude of 1.0 volt and a period of 0.5 sec. [Hint: You can use the symmetry of the waveform to reduce the calculation required.] v(t) 3.0 0.25 0.25 -3.0 Time (sec)

Explanation / Answer

11) SNR = snr(signal, signal_noise, typ, true) SNR = snr (2.5,.028,'db',true) ------------------ function SNR = snr(signal, noise, typ, noisy) if ~exist('typ', 'var') typ = 'db'; end if ~exist('noisy', 'var') noisy = false; end if noisy % eval noise noise = signal-noise; end if strcmp(typ,'db') SNR = 20*log10(rms(signal)/rms(noise)); elseif strcmp(typ,'amp') SNR = rms(signal)/rms(noise); end end