An improved music algorithm based on Lanczos process

In this paper, we present another method for DOA estimation without the necessary complete eigendecomposition, it is based on the improved Lanczos process and Sturm algorithm as well as Dichotomy method, and Finally, in the case of a Uniform Linear Array of eighteen isotropic sensors spaced a half wavelength apart with additive and uncorrelated white noise, we provide a simulated data example to evaluate the proposed method.