Hi,
I am running code for plotting beam pattern by following webpage of MATLAB: https://in.mathworks.com/help/phased/examples/introduction-to-hybrid-beamforming.html
But MATLAB throws error:
"Undefined function 'scatteringchanmtx' for input arguments of type 'double'."
This code is provided by MATLAB team and still is not working. Your help will be highly appreciated. Code is provided below:
clc, clear all
Nt = 64;
NtRF = 4;
Nr = 16;
NrRF = 4;
rng(4096);
c = 3e8;
fc = 28e9;
lambda = c/fc;
txarray = phased.PartitionedArray(…
'Array',phased.URA([sqrt(Nt) sqrt(Nt)],lambda/2),…
'SubarraySelection',ones(NtRF,Nt),'SubarraySteering','None');
rxarray = phased.PartitionedArray(…
'Array',phased.URA([sqrt(Nr) sqrt(Nr)],lambda/2),…
'SubarraySelection',ones(NrRF,Nr),'SubarraySteering','None');
Ncl = 6;
Nray = 8;
Nscatter = Nray*Ncl;
angspread = 5;
% compute randomly placed scatterer clusters
txclang = [rand(1,Ncl)*120-60;rand(1,Ncl)*60-30];
rxclang = [rand(1,Ncl)*120-60;rand(1,Ncl)*60-30];
txang = zeros(2,Nscatter);
rxang = zeros(2,Nscatter);
% compute the rays within each cluster
for m = 1:Ncl
txang(:,(m-1)*Nray+(1:Nray)) = randn(2,Nray)*sqrt(angspread)+txclang(:,m);
rxang(:,(m-1)*Nray+(1:Nray)) = randn(2,Nray)*sqrt(angspread)+rxclang(:,m);
end
g = (randn(1,Nscatter)+1i*randn(1,Nscatter))/sqrt(Nscatter);
txpos = getElementPosition(txarray)/lambda;
rxpos = getElementPosition(rxarray)/lambda;
H = scatteringchanmtx(txpos,rxpos,txang,rxang,g);
F = diagbfweights(H);
F = F(1:NtRF,:);
pattern(txarray,fc,-90:90,-90:90,'Type','efield',…
'ElementWeights',F','PropagationSpeed',c);
Best Answer