Analog Devices, Inc.
Methods and apparatus for a MIMO radar

Abstract:

Disclosed systems and methods include a multiple-in-multiple-out ("MIMO") antenna array, wherein the arrangement of antenna elements provide relatively good angular resolution for RADAR while reducing the presence of grating lobes. Transmitter and receiver antenna elements can be spaced such as to improve performance with reduced cost. In some embodiments, the transmitter and/or receiver antenna elements can be spaced at unit distances of a half-wavelength +/-10% or +/-25%. In some embodiments, the first receiver antenna element is at a four-unit distance from a second receiver antenna element, a third receiver antenna element at a one-unit distance from the second receiver antenna element, and a fourth receiver antenna element at a two-unit distance from the third receiver antenna element.