Apparatus and method for estimating angle of arrival based on ultra-wideband wireless communication

An apparatus for estimating an angle of arrival provided in a receiver of a ultra-wideband wireless communication system, comprising:

• a window setting unit for setting a window time that is a time interval for comparing a template signal and each of a plurality of reception signals obtained by receiving a transmission signal continuously transmitted a pre-designated number of times with a unit signal time length from a transmitter by each of a plurality of antennas disposed at a pre-designated interval;
• a template generator that continuously generates a template signal of a waveform corresponding to the transmission signal, by adjusting a generation time point in units of the window time;
• a plurality of signal correlators provided corresponding to each of the plurality of antennas, and detecting a level of a correlation signal obtained by correlating a corresponding reception signal among the plurality of reception signals and the template signal;
• and
• an angle of arrival determination unit, determining a reception time at which each of the plurality of reception signals is received by a corresponding antenna according to the level of each of the correlation signals detected in successive different window times, and estimating the angle of arrival of the transmission signal using a difference between the determined reception times.