STUDY ON RADIO DIRECTION ESTIMATION ALGORITHMS

The presented paper analyses the steps by which radio direction estimation algorithms are used to visualize the direction from which a radio signal originates. This study aims to use ULA (Uniform Linear Array) and URA (Uniform Rectangular Array) antennas and integrate them into a simulation in order to find the direction of origin of the signals, what the contrast between the phase and time differences is when the signal reaches the antennas and how the systems for estimating the directions of arrival (DOA) affect the signal at the receptor . The difference between ULA and URA antennas is exemplified by using them in a more complex system that can be implemented physically and not just digitally. These two arrays of antennas have several particularities such as the DOA algorithms used by each antenna, its angled directions and their representation from a matrix point of view. The simulation was conducted as a preliminary study for a hardware implementation of this system using a USRP N 310 software defined radio platform. Key words : radio, simulation, direction of arrival, antenna, algorithm.