pattern data out of scanned phased antenna array, not just the plot

I’ve worked through a lot of examples, it is easy to create a plot for a phased-antenna array, one which is scanned to several angles using the plotResponse function. I’m sure it is easy to do what I want, just not for me…. which is get the numbers plotted on the plot. They are directivity referenced, etc. Values from a 3D plot would be helpful too.

this command line is used to retrieve the actual numbers which represent the pattern:

`"el_pat = abs(step(sArrayResponse,fmax,el_ang));"`

The step function seems to be the answer to all problems of the world, but if I want to put my own weights to point the main beam in a particular direction, meaning in for ea element/s for the phases and possibly amplitude, I have not figured out how I can get just the pattern numbers (angle-magnitude) out afterwards. I would also like the values output for a 3D plot as well.

This code produces a pattern I want the actual numbers from:

`frequency = 3e9propagationSpeed = physconst('lightspeed')h = phased.URA;h.ElementSpacing = [0.0408163265306122 0.0408163265306122];h.Size = [8 16];h.Lattice = 'Rectangular';% The element is just a cosine elementh.Element = ...    phased.CosineAntennaElement('CosinePower',[2 2]);%Assign steering angles, frequencies and propagation speedsteeringAngle = [0;30]; %Steering angle%Calculate Steering Weightsw = zeros(getNumElements(h), length(frequency));elementVector = phased.SteeringVector('SensorArray',h, ...      'PropagationSpeed', 300000000,...     'IncludeElementResponse',true);%SV steering vector%Find the weights and the strings for the legendfor idx = 1:length(frequency)    w(:, idx) = step(elementVector, frequency(idx), steeringAngle(:, idx));endfigure;plotResponse(h, frequency, propagationSpeed, 'Unit','dbi', ...                'Format', 'Line', 'RespCut', 'El', 'weights', w);`

ANSWER

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What version of Phased Array System Toolbox do you have? If you are using R2014b, then you can use directivity method to retrieve the value, for example, to get the data you plot, you can do the following:

`el = -90:90;az = zeros(1,numel(el));D = directivity(h,frequency,[az;el],'Weights',w);`

You can verify it by plotting it as

`plot(el,D)`

and compare it to what you get from plotResponse

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Simple! That is me, a simple person. I am passionate about knowledge and reading. That’s why I have decided to write and share a bit of my life and thoughts to.