Abstract:
The implementation of code to efficiently compute the array
factor and sidelobe level (SLL) of linear antenna arrays in MATLAB and
GNU Octave is considered. The use of a fast Fourier transform (FFT)
to compute the array factor is shown to be more efficient than other
approaches. The automatic determination of the sidelobe region as a
necessary step to computing the SLL is addressed. A number of codeoptimsation
techniques in MATLAB and Octave are evaluated, including
vectorisation, memory allocation and the use of built-in functions. Finally,
an efficient function which can be used for the computation of the array
factor and SLL of linear arrays in MATLAB and Octave is presented.
