www.gusucode.com > phased 案例源码 matlab代码程序 > phased/LinearSubarrayReplicatedInCustomGridExample.m
%% Linear Subarray Replicated in a Custom Grid % This example shows how to arrange copies of a linear subarray in a % triangular layout. %% % Create a 4-element linear array. antenna = phased.CosineAntennaElement('CosinePower',1); array = phased.ULA('NumElements',4,'Element',antenna); %% % Create a larger array by arranging three copies of the linear array. % Define the phase centers and normal directions of the three copies % explicitly. vertex_ang = [60 180 -60]; vertex = 2*[cosd(vertex_ang); sind(vertex_ang); zeros(1,3)]; subarray_pos = 1/2*[... (vertex(:,1)+vertex(:,2)) ... (vertex(:,2)+vertex(:,3)) ... (vertex(:,3)+vertex(:,1))]; replsubarray = phased.ReplicatedSubarray('Subarray',array,... 'Layout','Custom',... 'SubarrayPosition',subarray_pos,... 'SubarrayNormal',[120 0;-120 0;0 0].'); %% % Plot the positions of the array elements (blue) and the phase centers (red) of the % subarrays. The plot is in the _xy_-plane because all the % _z_-coordinates are zero. viewArray(replsubarray,'ShowSubarray',[]) hold on scatter3(subarray_pos(1,:),subarray_pos(2,:),... subarray_pos(3,:),'ro') hold off