Step-like weighting windows for DSP in spectral analysis and antenna arrays

Abstract

Step-like weighting windows are proposed for various applications in digital signal processing. Their parameters are optimized to minimize either the maximal sidelobe level of the corresponding frequency response (equidistant array pattern) or the ratio of the energies concentrated in the sidelobes and in the mainlobe. These parameters together with the mainlobe width are compared to the corresponding values of the optimal Dolph-Chebyshev and Kaiser-Bessel responses. Several advantages provided by the step-like window implementation are considered.