如何解決在MATLAB帶寬和香農容量

Question

C =乙LOG2（1 + SNR）如何能夠在MATLAB繪製此

figure('Color', 'white') 
SNR = 1000 ; 
B = 4.* 10^6 ; 
C = (4 .*10^6) .* log2(1+1000); 
plot(C) 
xlabel('SNR'); 
ylabel('B (MHz)'); 
title('Throuput') 

Answer 1

要繪製C作爲SNR的函數：

SNR = logspace(-1,2,1000); %// choose as desired 
B = 4e6; 
C = B*log2(1+SNR); 

plot(10*log10(SNR),C) %// SNR in dB 
xlabel('SNR (dB)') 
ylabel('Capacity (bit/s)') 

或

plot(SNR,C) %// SNR in natural units 
xlabel('SNR') 
ylabel('Capacity (bit/s)')