how to create a steering vector of desired beamwidth for beamforming using ULA

how to create a steering vector of desired beamwidth for beamforming using ULA

Answer 1

[Gautam]

Hello Afifa,

You can use the “phased.SteeringVector” method of the Phased Array System Toolbox to create a steering vector for a ULA. The code below creates a steering vector for a ULA and plots the corresponding beam pattern

%Creating a ULA using the phased.ULA function.  
c = 3e8; 
fc = 7e6;  
lambda = c/fc; 
txarray = phased.ULA('NumElements',4,'ElementSpacing',lambda/2); 

%Creating a steering vector using the phased.SteeringVector function 
steer_ang1 = [30; 0]; 
stv = phased.SteeringVector('SensorArray', txarray); 
w1 = stv(fc, steer_ang1);  

%Plotting the beam pattern for the steering angle 
pattern(txarray, fc, -180:180, 0,'PropagationSpeed', c, 'Weights', w1); 

For more information you can refer to the MATLAB document for the function “phased.SteeringVector”

https://www.mathworks.com/help/phased/ref/phased.steeringvector-system-object.htm