therefore, the hardware expense and power consumption of
such a system is considerably high [12]. Theoretical works
regarding a structure with fewer receivers than antennas have
been proposed in the past [13]–[19]. A beamforming algorithm
for simultaneously finding the azimuth angle, the range, and
the radial velocity using a switch-antenna array FMCW radar
system has been developed in [19]. A robust version of the
beamformer proposed in [19] has been addressed in [20] for
parameter estimation in an impulsive non-Gaussian noise environment.
These proposals primarily concern automotive radar
applications. Most works for automotive radar applications
consider the range, the azimuth angle, and the radial velocity
as target parameters