Fast MUSIC for large 2-D element digitised phased array radar

Super-resolution for direction of arrival (DOA) estimation has been a subject of research papers over many years. In an ideal case, super-resolution would be performed using element digitised array radar (EDAR) to give grating lobe free full-gain beam patterns during the processing. However, these techniques tend to require vast computational effort and their implementation can be limited. In this paper, an implementation of the MUSIC (multiple signal classification) super-resolution technique is developed that can perform fast DOA estimation covering all azimuth and elevation angles when used with large 2D planar EDAR.