use wavelet transform to analyze signal

Question

let us suppose that we have following signal

function [ x ] = generate1(N,m,A3)
f1 = 100;
f2 = 200;
T = 1./f1;
t = (0:(N*T/m):(N*T))'; %'
wn = randn(length(t),1); %zero mean variance 1
x = 20.*sin(2.*pi.*f1.*t) + 30.*cos(2.*pi.*f2.*t) + A3.*wn;
%[pks,locs] = findpeaks(x);
 %plot(x)
end

and i want to get it's spectral structure using wavelet transform,which wavelet transform should i use and which parameters?i meant scale and delay parameter?i generated signal by this command and get vector $y$ with length

`$y=generate1(3,500,2)$;

length(y)

ans =

   501

now about wavelet transform,of course i can use a lot of wavelet basis fucntions,but which one is suitable for this case?thanks in advance