Hi,

I am doing linc transmitter by using gnu radio.In which i want to

separate

OFDM signal in two constant envelope(software part) and then power

amplify

it seprately, finally combine two signal(hardware part).I have done the

software part in Matlab and here is the code for that.

r=abs(normal_data);

theta=angle(normal_data);

%normal_data=r.*exp(i*theta);

rmax=max®;

e1=j.*normal_data. sqrt((rmax^2)./(r.^2)-1);
s1=normal_data+e1;
plot(s1,'b’)
s2=normal_data-e1;
plot(s2,'r*’)

Here s1 and s2 are two signals with constant envelope.As i am new to

GRC, is

it possible to compute square root, which block should i use.

Thanks

Regards

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