simulate the log normal fading process over distance based on the auto correlation model

how to simulate the log normal fading process over distance based on the autocorrelation model in matlab.generate white noise process and passes it through a first order filter with a pole at e-del/xc. assume xc=20m.d=0 to 200m .sampling the process over every mater.

Answer 1

[vali ghanbarzadeh]

Xc = 20;

ss = .01;

y = wgn(1,200*(1/ss));

for i = 1:length(y)

x(i) = y(i);

for j = 1:i

x(i) = x(i)+exp(-(i-j)/Xc)*y(j);

end

end

Answer 2

[vali ghanbarzadeh]

Xc = 20;

ss = .01;

y = wgn(1,200*(1/ss));

for i = 1:length(y)

x(i) = y(i);

for j = 1:i

x(i) = x(i)+exp(-(i-j)/Xc)*y(j);

end

end