  A new method of angle estimation of multiple targets using a distributed
interferometric antenna array and wideband space-time modulation is presented
in this work. Interferometric array measurements of angle of arrival are
generally ambiguous in the presence of one or more targets. We propose a new
method of mitigating ambiguities in interferometric measurements by multiplying
the angle pseudo-spectra from multiple antenna baselines, resulting in
detections at only the angles of the targets. Using a single linear frequency
modulated (LFM) transmitter and a receive interferometric array with $N$
elements we show a simple and computationally efficient technique to estimate
the angle of up to $\mathcal{O}(N^2)$ targets. We describe the theory behind
the technique, present detailed simulations, and an experimental verification
using a three-element millimeter-wave measurement system.
