Calculating SNR and BER
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As I am newbie to signals, I have collected an appliance signal in frequency domain as follows:
(PSD- Power Spectral Density). So, I need to calculate the SNR (Signal to Noise Ratio) and BER (Bit Error Rate) caused by this signal in Powerline Calculation. So, I have made these codes in Matlab, but what I am stuck with is calculating the SNR and BER.
bits=10000; %number of bit
b=randi([0,1],1,bits); % generate random [0,1]
t=0:1/30:1-1/30; % Time period allocated for the signal
%ASK Carrier Signals
carrier_signa_l= sin(2*pi*t);
E1=sum(carrier_signa_l.^2);
carrier_signa_l=carrier_signa_l/sqrt(E1); %unit energy
carrier_signal_0 =0 * sin(2*pi*t); % zeros for 0 bits in the carrier signal
%MODULATION
ask=[];
for i=1:bits
if b(i)==1 % If bit = 1
ask=[ask carrier_signa_l];
else
ask=[ask carrier_signal_0];
end
end
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